I haven't.

My God, girl, run out and get yourself a Slurpee!!!!!! (OK, I know it's hard to find a 7-11 in Ontario so Mac's Frostee will do.) Now eat it too fast. Does your head hurt? Then you have a brain freeze! 7-11 markets them this way!!!!!! I used to live in Winnipeg, the Slurpee capital of the world! More Slurpees per capita consumed there than anywhere else!