SABBBAAATTTHHHHH!
That's the rallying cry of the Black Sabbath fan featured in this video, as he reacts to meeting his idols in a manner that seems disproportionate to the quiet, impersonal setting of the "in store autograph session".
Now I'm sure that many Radio 3 listeners have met some of their favourite acts before. Sometimes it can be hard to contain yourself! But have any of you ever acted quite so... passionately?
Come on, don't be shy, we're all friend here: what's the most embarassing reaction you've had to meeting your idol? Don't worry, I bet you weren't half as excited as Feist was when she met Snoop Dogg (sorry, Snoop Lion).