moonshineshadow: :D
If you want you can tell me, but perhaps you should put a warning before since I don't know if everyone could handle it :P
Okay: Warning, do not read if you are about to have lunch soon. :-)
Well, if you are interested. It's not actually too bad, nothing that should get anyone feeling sick. Seeing it and smelling it is different, but hearing about it is okay.
The normal way is to shock the animal, then cut the throat while the animal is hung upside down, this allows the blood to train out. There are two opinions on how best to do this, one of them being old and the other new, which is slowly becoming more popular. The first is to shock the animal, but keep the heart beating, which helps to pump the blood out (the animal is out cold and does not feel any pain). The second and newer method, is to shock and kill the animal (via cardiac arrest). Some research has indicated that the blood will drain in the same quantity no matter if the heart still beats or not, so some are now just shocking and killing in one go and letting gravity drain the blood. But both are relatively painless for the animal, and both result in a pain free death without effecting the quality of the meat.
You can also use gas, which is often done for chickens, but this is not 100% guaranteed, and sometimes the animals might still be awake or feel pain, but for the most part the risk is acceptable and it is considered a humane method (although others use electrocution as it is more effective).