I have a gopher, how do I kill it?

First off make sure that there are no underground pipes (gas or poop) in the area where the holes are, find the highest part of land with a hold on it, dump about 10-20 gallons of gas down that hole, let it soak in for a little while, drop a match in hole and try to run away.

I have a buddy that lived in Portland,OR and he had a mole in his front yard. He did that and his whole yard bounced once, smoke came from the holes and he never saw another mole hill in his yard again. :-D