Have you ever mobbed anyone?

There seems to be a criteria here: Famous person supposedly arrives 'unannounced' (i.e.his fans know) to a general melee as they all try to see/touch/shout at him.

OK, my one time:

I was in picadilly circus area, and had seen that Paul McCartney was due to arrive at some bookshop there to sign one of his poetry/art books. There was a general mass of people, mostly not crushing. Just then, a limo arrived and a blokey in a tracksuit gets out to general mayhem. There's me in the middle of it, and Macca passes quite close. So, I thought: "Bit rude not to, really" so patted him on the shoulder, like some others were.