One thing I was surprised not to see here but applies to any termination for any reason (even quitting really): do not sign anything without being paid for it.

One thing I was surprised not to see here but applies to any termination for any reason (even quitting really): do not sign anything without being paid for it. Even if they are offering a severance run it by a lawyer first. Without though, just don't, no matter how innocuous it seems. It's for their benefit, not yours.