Contracts can be complicated and lots of companies prefer to use boiler plate. If someone is asked to sign a contract and then asks a question about it, does the answer given by the drafter have legal weight and would be enforceable?
For example, if Company A emailed person B a contract and person B asked a clarifying question about the interpretation of a term in the contract, if Company A replied by email would their response be legally binding or at least valid evidence in court?
Specific example: if a contract says "no consumption of alcohol at work" and before signing it a person asks "if I am off the clock can I drink in the staff room", if the reply is "ok", then could the company still fire for just cause the employee for drinking in the staff room off the clock? (assuming it wasn't employment at will, the employee wasn't intoxicated and was doing the job well, etc.)