Just a quickie. After last week's ripple of applause after the first of my lectures to the 1A classicists, after the first of my lectures to the 1A philosophers, some of them banged the desks instead. (I think this was meant to be a sign of appreciation.) I hadn't come across this much before. Is it a disciplinary thing? (Philosophers bang; Classicists clap?) A quick google suggests that table-banging is a parliamentary thing. Or a Germanic thing. Any other suggestions?