Knock the beast down.
Kick it to death for 8 weeks.
Then keep kicking for another 4, just to make sure its doesn't jump up and bite you in the ass.
If you get tired, kick with your other leg for a while.
That reminds me of a quote from a businessman here:
Q: Would you kick a man while he was down?
A: Only if he looked like getting back up again.....
