easy ways to build stuff but make people freak

machine gun make a redstone clock and put a dispenser at the end of it and fill it with arrows then start the redstone clock and you can do this with fire charges to put it at someones door then when the log on when they try to get out of their house they will be shot with arrows. NOOB TRAP LOL noob trap put sticky pistons in a 5 by 5 square then put a block over them the same as the floor then put pressure plates inside the sqare in and by the pistons then make a obisan roof that is 2 blocks high so you can not jump then when a noob comes by they will go in it and when they go to get out the piston will come up so no matter what the try they are stuck and you can hide a watch you can do it with a mean mobs it is so funny!!! if you want to know any other kind of trap comment tell me what you want to trap and I will mess around see what I can come up with.