This. In a business law class my instructor told me you should never sign a contract you are offered. Change it however you like and send it back as an offer. Or if you are being asked to sign something on paper mark it up with your pen, initial each change, and THEN sign it. If they don't like it they don't have to sign it.

Or better yet, if they send it to you electronically, change it however you like, sign it and send it back. If they don't read it it's kind of their problem.

I once got out of a compete clause because the recruiter told me that I should go to the fedex store, pick up this contract, sign it immediately and fedex it back. I asked about having time to read it and he told me not to bother. So I didn't.

When I was hired away by a competitor and he was yelling at me on the phone I reminded him of this. It helped that my new employer had indemnified me and was willing to pay the court costs to fight it for me.