I had an interesting experience after the 757 (SFO-DEN) I was flying in landed. I was in 5A and was waiting for the person in 5B to get her stuff together and leave (via the middle door). She took quite a bit of time and there were a number of passengers waiting to pass. Still, once she was done I walked into the aisle and pulled my rollaboard out of the overhead and attached it to my laptop bag with the piggyback strap. I was quick but my coat got stuck in the piggyback strap and I had to fiddle with it to get it loose or I would be doing a huchback sort of a walk. The passenger standing immediately behind me starts off: Come on Sir, we've been waiting for ever here - there are about ten guys behind me who want to kill you right now. My reply was instant "I'll kill you if you don't shut the F_ _ _ _ up". Silence - just the way I like it