I was so naive when I joined my first startup. When we were purchased, it came to light that the main guy never got around to signing my stock option agreement. He is a fucking mensch and signed it after the fact. Character buys a unique, abiding respect.
At my first startup, the share option terms and conditions had a clause allowing the company to arbitrarily change any condition in the contract. Of course we signed it and didn't think much about it. At the IPO this clause was very predictably used to extend all the employees'[1] vesting schedule to many years after the IPO event. By that time the options were worthless because the company was acquired in a fire sal…
I would almost think that a lawyer would be able to convince a judge that that "contract" was written so adversely that the "arbitrary change" clause should be struck, since the rest of the contract is essentially illusory if it remained.