It's interesting to watch as he fields only the easiest, stupidest questions.

Particularly love this one:
Gary
?@GaryBrown_62
@MayorofLondon Boris.. Why are there so many busses in central london, a high pacentage seem empty ? #AskBoris

I imagine Gary as a white van driver who thinks he might get to where he has to go a full minute earlier if there weren't so many damn buses getting in the way. Oh and he probably thinks he'd pay less tax too.