Awhile ago, a lot of news outlets reported on how the agreement between Martin Shkreli and the Wu Tang Clan regarding their sale of the only copy of their album included the (supposed) wording:
The buying party also agrees that, at any time during the stipulated 88 year period, the seller may legally plan and attempt to execute one (1) heist or caper to steal back Once Upon a Time in Shaolin, which, if successful, would return all ownership rights to the seller.
Assuming a contract did have wording in it similar to this, would this be legally binding? In a more broad sense, what are the limits--if any--to what can be legally binding within a contract?