I did tours and stuff w/ them today.
They were angels. (Ok, not all, there were about 1/8 who were bored and didn't try to hide it...but they were quiet and didn't distract people. So that's OK :-})
They even asked intelligent questions--including one I didn't know the answer to (so I gave them my e-mail address and told them if they e-mailed me, I'd get them an answer from the expert in that field)
And since itw as my day off, I hit the door running when they left for lunch.