One time in a Science lesson, I was working with my best friend Rhys (I think I've mentioned him before, basically he has autism), and it was just a couple of Fridays ago. We teamed up and, like everyone else, we made a contraption to empty Mentos into a bottle of Coke, then watch it fizz......
When we got outside, everyone looked at us like we weren't screwed on - because we were wearing protective goggles. That was because Rhys had added an extra ten Mentos, to everyone else's five. Also, he had punched four holes in the top, and covered them up, so when it exploded - it really did explode!
We pulled our string and all (cough cough) five mentos dropped into the bottle or coke. God - the thing practically exploded. Rhys, being Rhys, hit the deck like bombs were being dropped on the field! Coke and fizz etc was being sprayed everywhere - and it looked as if it weren't going to stop. Our Science teacher just put it down to 'luck'