When I was a kid I got the Sabrina the Teenage Witch “Handbook” – it was full of kiddie experiments and stuff and was pretty fun.My older sister had upset or annoyed me about something, so I tried out one of the ‘tricks’ from the book, you fill a cup with water and some corn kernels, put some tinfoil on top of the cup, the kernels eventually pop and it makes noise against the tinfoil. I put it under her bed, it takes a few days to “work”, so I completely forgot about it, until one night I woke up to my two sisters whispering – it had popped in the middle of the night and she thought there was a rat under her bed. -caca_milis_