one show i will not be watching tonight, page-41

The notion that appalls me about animal experimentation -and which makes it consistent with my eating meat occasionally- is not so much the "life" of the animal but the hurt and suffering caused by the experimentation. To kill animals humanely, and for a great need, is, to my mind, acceptable. If rats bring about disease and plague then I would accept their culling, provided the best, most efficient, least hurtful means are employed. The same with meat. I know that abattoir handlers don't always treat the unfortunate animals in the most humane way but I would fight as best I could, to correct that.
Animal experimentation is a concerted effort to make the animal sick, to make it suffer so as to see if a certain drug will cure it. Lots of animals and lots of suffering later, nothing might come out of it and these days, less and less of what comes out of it, is of absolute necessity,
And dave, I have no probs at all, in killing mozies or rats or flies that might deliver disease to me. I will keep the question "is it necessary?" uppermost in my mind. Will I try and kill a lion charging at me? Of course but I would never enter the lion's territory with the expressed reason of killing it or, worse, to make it suffer.

Same with humans. I will kill -if I have to and I will try to kill in as humane a way as the circumstances will allow.

This has nothing to do with causing suffering for the sake of causing suffering.