I remembered coming across this comic from Saturday Morning Breakfast Cereal.

Tommy, the Office Prankster

In this comic, Tommy replaces his boss' gun with a fake that just shoots out a "Bang!" flag. Later, he breaks into his office and pretends to be a robber, presumably expecting his boss to try to defend himself with the fake gun. However, his boss committed suicide, and happened to use the fake gun.

Assume the following:

  • Tommy did not steal the real gun, he hid it elsewhere in his boss' office.
  • Tommy has a job where he could plausibly need access to his boss' office (maybe an IT guy or something), so he has a key.
  • Tommy did not intend to actually hurt his boss.
  • Tommy's boss' suicide was entirely intentional, and he would've died even if Tommy had never attempted the prank.
  • There was no suicide note.
  • State and country doesn't actually matter, because I'm curious as to how different systems might handle such a strange situation.

My questions are as follows:

  1. Is Tommy guilty of any crime?
  2. If his boss didn't commit suicide, and tried to defend himself against the "robber" as planned, would Tommy be guilty of a crime even if ultimately no one was actually hurt?
  3. If a real robber had broken into the boss' office before Tommy had a chance to play his prank, and the boss was unable to defend himself as a result, what charges would Tommy be facing?
  4. Could his boss sue him if the scenarios in (2) or (3) came to pass?
  • Surely the answers depend on the jurisdiction.
    – phoog
    Nov 18, 2015 at 19:49
  • 1
    Yes, it does, and that only makes me more curious.
    – JesseTG
    Nov 18, 2015 at 19:55
  • 1
    How do you commit suicide with a fake gun?
    – Mohair
    Nov 18, 2015 at 20:03
  • 3
    The situation seems to be: There was a lethal weapon. The prankster swapped it with a less dangerous weapon. The boss committed suicide and it "worked" exactly as it would have happened with the original weapon. A much more difficult question: If the prankster's action made the boss survive, with a $500,000 hospital bill, or permanent health damage, which would not have happened with the original weapon, would the prankster be responsible?
    – gnasher729
    Nov 22, 2015 at 13:40
  • 1
    Just to be sure: Did Tommy’s boss commit suicide upon Tommy entering the room? As soon he heard someone at the door? Or was the boss already dead as a dodo for, say, 20 minutes? [And, just out of curiosity, are you, I mean, “someone you know” planning such a “prank”?] Apr 20, 2022 at 16:22

1 Answer 1


In Canada, I think Tommy would be found guilty of criminal negligence causing death.

Criminal negligence

219 (1) Every one is criminally negligent who
(a) in doing anything, or
(b) in omitting to do anything that it is his duty to do,
shows wanton or reckless disregard for the lives or safety of other persons.

(2) For the purposes of this section, duty means a duty imposed by law.

Causing death by criminal negligence

220 Every person who by criminal negligence causes death to another person is guilty of an indictable offence and liable

(a) where a firearm is used in the commission of the offence, to imprisonment for life and to a minimum punishment of imprisonment for a term of four years; and
(b) in any other case, to imprisonment for life.

Tommy didn't show any consideration for the safety of his boss, and even though he didn't directly kill him, he showed disregard for him. The fright Tommy caused his boss eventually caused his death (had Tommy been a real robber, he could've been charged with first-degree murder).

  1. Probably not: if nothing happens, then it will probably be taken as a good ol' prank.

  2. Probably be charged with criminal negligence, assuming that Tommy took no action to assist his boss after realizing the situation.

  3. This would likely be a civil case, rather than a criminal one. I'm not too familiar with civil law, but I wouldn't be surprised if assault came into play.

  • 3
    I don't think that conduct is wanton or reckless. It may be negligent, at most, but it doesn't rise to the level of criminal negligence.
    – Viktor
    Jan 20, 2016 at 15:49
  • @Viktor I would see it as either being criminal negligence or manslaughter. I opted for the negligence charge mostly because Tommy wasn't necessarily the one causing the death, but he showed disregard for the safety of his boss. I'm using Canadian law here, and section 222(5)(c) reads "by causing that human being, by threats or fear of violence or by deception, to do anything that causes his death;" - I could probably be successful in finding him guilty of manslaughter if I wanted to.
    – Zizouz212
    Jan 20, 2016 at 20:20
  • the fact that the boss shot himself doesn't play into that?
    – Viktor
    Jan 20, 2016 at 20:26
  • 5
    If the boss committed suicide 15 minutes before Tommy came bursting in (which is how I interpret it) how did he cause his boss to be afraid? He replaced a real gun with a fake gun that looked similar enough that his boss mistook it for the real thing. A bullet would have killed his boss just as surely (unless his boss was in the habit of sticking an unloaded gun in his mouth and pulling the trigger without first checking the barrels). The boss intended to commit suicide with a bullet, independently of Tommy bursting in 15 minutes later, but died from a stick through his brain instead.
    – CJ Dennis
    Feb 5, 2016 at 3:57
  • 3
    Plot twist: Tommy's boss thought his actual gun to be unloaded and was just clowning around.
    – SQB
    Nov 4, 2021 at 10:56

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