Here are some instructions on getting in trouble.
The FHSSB! Or, the "Foaming Hog **** Slurry Bomb". I adapted this from an old idea I had from high school for booby trapping 2-liter soda bottles.
The soda bottle booby trap was simple: You take a full 2-litre bottle of soda, unscrew the cap and pop out the little plastic insert found on the inside of the cap. Put a hole in the middle of this plastic disk to allow a string through and then tie a knot so that it won't pull through. The string has to be small like a thread so that the knot won't be so big that it keeps the insert from snapping back into the cap. Then you snap the insert back into the cap. On this string you'll want to suspend 3 or 4 alka-seltzers taped together(will have to grind down their edges a bit to make fit into the bottle opening) being certain that once screwed back onto the bottle, that the alka-seltzers are close but not touching the soda. Then you simply would place the bottle anywhere that it would be easy to knock over. When that happens of course, the bottle explodes from the gas pressure as the seltzers make contact with the soda.
Now just imagine if instead of soda, it was carbonated dregs from a hog farm. A human slurry is probably easier to obtain, but DNA tracing would be concern if it was your own. You simply fill the bottle and use a cheap and commonly available carbonizing adapters for keeping open bottles of soda freshly carbonated. But who says you can't carbonate other neat things? Wouldn't that look cool splattered all over someones house that you know? Or, if you know someone anemic, you could also make a Foaming Vomit Acid Bomb, which is also cool and might actually be harder to clean up, depending on which surfaces the foaming concoction splatters on.
Just imagine one of these placed behind your favorite marks bedroom door! Good night!
Wheee!