If you focus on this at the point where you aren't getting what you want its too late. You need to build a relationship of trust before you ask for an exception or special request (in the eye of the manager not you). Your manager should know the following: - That if there is a problem you will always come to him/her first not try and work around him - That he can count on you to do what needs to be done. You will go…
Edit to add: If you're wondering why your supervisor might be reticent to allow you to talk I can think of a couple of potential reasons. - They're worried you'll unintentionally leak something - They're worried you'll get hired - They're threatened by you - They want you focused
.... But the easiest way to find out is just to ask.