I was in barnes and noble today riding down the escalator when a guy on the up side said "oh shit" and got all agitated. I turned to look at him, just 'cause I thought it was interesting and kinda wondered what was up -- I mean, an escalator is a step away from being pushed in a wheelchair or riding one of those beeping carts at the airport on the list of passive ways to move around, plus humans are interesting and I'm pretty bored these days. He rifled though his books for a gliding second or two, then looked up at me and apologised. It was fine, really I said with a smile turning to a laugh. He didn't need to apologise. Shit is a perfectly acceptable word, but a little strange on an escalator.