[slantyyz]

It's more common than you think.

You might not see this in a small startup where the owners/managers don't have much business experience, but the rule of thumb is you NEVER sign this paper unless you're absolutely sure you will never cross paths with your previous employer again, no matter how much $ is dangling in front of you to sign it.

For a lot of departing employees, the stress of the situation leads them to sign it (i.e., sign now or you lose the chance to get this money we're dangling in front of you), which is often a mistake, because you are often signing away your right to sue them.