I've met hundreds of celebs, and 99.9% of them are unbelievably nice and kind. The only two that have ever been gruff were Bill Shatner and Dean Stockwell, and

I've met hundreds of celebs, and 99.9% of them are unbelievably nice and kind. The only two that have ever been gruff were Bill Shatner and Dean Stockwell, and honestly, they could have just been sick/tired/having a bad day. I would say "meet your heroes"; most of them are probably going to be better than your expectations.