> Doesn’t it bother you that you have to ask some manager if you can do something (a side project) in your free time?
Not at all. A salaried position comes with more open-ended expectations than an hourly position.
Besides, why the resistance to simply asking making it open and honest and the boundaries clear? My agreements on those things tended to be 2 or 3 sentences. I'd sign it, I'd get a veep to sign it, make a copy, and file it away.
It's just good business to do such things.