While I mainly write Perl at work for my job, apart from the "school" nomination I do all of them. In fact the addition to the list could also be "On public transport".
I regularly get funny looks and comments while riding on the 63 bus route to and from Birmingham city centre. Seeing as I live over 10 miles out, I usually have plenty of time to do stuff. The funniest comment I've had so far was from a young girl (well twenty-something, which is young for me), who'd seen me a couple of times, and asked all excited, whether I was a novelist writing my next best seller. She was very disappointed when I said 'no I'm a Perl programmer'. If I'd have been single I'd have said 'yes' of course :)
Birmingham Perl Mongers
Web Site: http://birmingham.pm.org/