I didn't ask this when I joined my current company, but have since learned my lesson. For future offers I will be sure to ask about the outside work project policy and pass if I feel it is overly restrictive.
haha right... a colleague of mine just was sued for attempting to join a company considered a competitor...we all had to sign NDAs that prohibit working for a number of companies in our field after we live current employer..
If company wants and there is an NDA/non-compete in place they can bury you in legal costs even if they dont win.
Be careful with highly restrictive NDA/non-competes.