100x, at least.

The chances of a successful exit are vanishingly small, but like winning the lottery, you still hear about them, sometimes!!

You'll get commenters here on HN that say "I had a successful exit..." but there are orders of magnitude more people who have signed completely worthless contracts.

Even if you do have a successful exit, your payout should not be just a few times your missing salary. You won't get that money for years, and if you do, it comes with a whole host of headaches.