I didn't know the second trick, not bad at all. The first is well known, but cool!

I'm not really a JCS master, but I'll post here anyway.

The Beeboy event is a swarm of bees which wasn't used in any official level, and which can be very annoying when used in the right environment.

I know, that's not really a great trick, but I'm too lazy to think of something better. :-P