If you subject any organism to intense microwave radiation, its blood boils, cells ooze and proteins denature, among other horrors. Gruesome, but not quite the dramatic end your claim conjures.

It's much more entertaining to toss it into a airtight container and suck out the air.

Oh god I feel so bad for even thinking of doing that to an animal.

We all know that you're going to get that scout anyway!

Whether or not the specimen is alive at the time makes no difference to the outcome of such a procedure. It is not difficult to work around the ethical issues.

It honestly just depends on the what animals are at the Shelter.
TACHYONS BLUE PENIS MARS

And they can't even give birth naturally the majority of the time because of their huge head proportions. I'm thinking the english/british bulldog, rather than the pit bull terrier. Not that I don't get them mixed up anyway. Dobermans may also be one of the worse breeds, but obviously the problems are slightly different.
Aggressiveness is a mental (usually) issue, and I believe alot of it is more how most owners of a breed treat their dog, as opposed to genetic influence (though this is sometimes a factor, particularly when considering what purpose the dog breed was initially for. Jack Russel, anyone?).

Why?