This is totally anecdotal, but I've been meaning to post this story and this seems a good time.
A couple of days before the huge recent Obama rally in St. Louis I was in a gun shop with my husband. (Incidentally, he owns multiple guns, is a member of the NRA, and is voting for Obama.) While we were in there (him shopping, me sitting on a little couch waiting for him), one of the employees came out to say that he just answered a phone call from an Obama volunteer, and the guys in the store had a good chuckle about it.
The guy proceeded to comment on the fact that he had a friend "working Obama's detail" that weekend. Then they all joked about how the friend should accidentally fall asleep on the job, at which point I think they realized there were non-regular customers in there and they stopped elaborating.
I realize I was in a gun shop, but I still thought it was pretty incredible to actually hear people joke about wishing that Obama's protective detail would fail in their job to protect him. I'm not naive enough that I was surprised they would think it, I was just surprised they would speak it in front of customers. Hubby and I decided it was a good thing that he drove his vehicle there, since mine has an Obama sticker on it.