So maybe you've been reading about all this, and have decided that
electricity + brain = fun....
and now you're pondering the idea of plugging your cat into a sony
playstation.
Before you begin to tread the messy path of home surgery, i must
urge caution:
Holes in your head are not fun. I'd avoid them altogether. Using
a friend or pet instead still isn't totally justifiable. Respect other
creatures as you'd want to be respected yourself.
It is true that surgeons use tools similar to those in the garden
shed; like sterile drills, screws and saws. However, surgeons are
good at drilling holes in heads. Normal people have trouble drilling
holes into walls. Neurological D.I.Y. is best avoided when
professionals are available.
Disclaimer:
The author takes total responsibility for himself, and no responsibility
whatsoever for anything other people do.
So take care.... and save up for some good electrodes.