Ever since that classic seen in Psycho people seem to have an irrational fear of a closed shower curtain. After all, there may be a killer on the other side. This shower curtain takes all the uncertainty out of things: There’s always a killer.

Have an unwanted house guest who comes over and uses your bathroom? Their visits will likely stop after they see this and get creeped out. But it gets better. This shower curtain comes complete with a woman’s terror filled scream and the music from Psycho. It’s got a AA battery-powered motion sensor and speaker, which is activated whenever someone enters the bathroom. Only $20.

If you happen to see a guy or gal wearing a wrist knife like this and approaching you on a darkly lit street, you’re gonna wanna run like hell. I think it’s safe to say that this thing could probably gut you real fast.

What could be scarier then than this? The price. At under $40, any psycho stalker, or goth D & D misfit can afford one and take to the street. See, this kind of thing here is why we need Batman to be real. It’s just crazy. You can also get one in dragon or skull form.