I had one the night before.
I went to a Muse show, obviously it was awesome. Then the next night I had a ticket to Chemical Brothers, I'm standing in the front row, best spot, then Chris rushes up to me and says "er, we're having an afterparty if you'd like to join?". I go with him and wake up.
And think FUCK, FUCK, CHEMICAL BROTHERS, WHAT DID I DO
My roommate is cruel: You left a Chemical Brothers show for an AFTERPARTY?