A few. Either cool to talk to or thinking you're going to rob them. A safe fear, maybe, but kind of those worst-case-scenario people.
I have to admit, I won't share more intimate knowledge (good banks, how my finds are going, etc) but I won't be hostile either. I'm happy to talk. Unfortunately, the people I've seen recently are people who aren't "doing it right" and end up causing more harm than good (dumping in large amounts, buying/dumping same branch, etc). Not much I really want to say to them.
Tellers are usually fun to talk to. I will show them my wheat penny book and some particularly interesting stuff, and they share theirs.