Yes, the brooms are from me, and yes, I stole them using Harry's cloak. Only mind you keep that between us, otherwise people will expect me to always bring around new wands and brooms, and I'm fairly certain that this was probably a one-time escapade. Or not likely to be repeated for some time, anyway.

Stealing is bad, of course, unless you have a very very good reason for it.

So you don't think you need lessons, eh?