I don't like to unclip unless I have to. Most of my 'trackstands' are really just extremely slow creeps forward.
I'll try to time traffic and will get extremely pissed at some driver who thinks they're gonna do me a favor by stopping and waving me through my left turn. Inevitably there's another car behind them that's making a right that I'd have to deal with. I'm sure they mean well but I wish they'd just move it.