Pseudoscience used on the show.

I found out, thanks to Mythbusters, that usage of trying to get audio recordings from pottery doesn't work; and you can't set someone on fire that's wearing a flannel shirt using pepper spray and sparks from a stun gun.

Lol, that's not pseudoscience.

Those are both very exact sciences.

Those would be pretty useful tools in a police procedural dealing with vampires.