I asked this question to Tim from Music of Sound, and he was very helpful.  But I wanted to open it up to discussion here as well.

In cases where permission is required to record at a location, I have a hard time getting people who have never heard of field recording to understand what I’m trying to do.
For instance I was trying to record a chanting session at a buddhist center and the only thing they would say to me was “we have CDs of chanting that you can buy if you want to hear it” 🙂
I’m plenty polite but people seem to be suspicious, or confused.  People are used to cameras, but not microphones.
Do you find yourself in these situations? Any tips on overcoming this obstacle?