Hehe... reminds of when I was in the university computer lab packed with people, I had put coca cola in a water bottle with one of those caps that you click up and can drink out of straight away - so little did I know the pressure was building for a while, I picked it up out of my bag without touching the lid and booooooom cocla cola spraying out in a jet stream all over me, my computer, keyboard, monitor, person/computer next to me etc. It made such a loud noise to the entire lab of 50+ people were staring at me. I wasn't popular....