If the answer is no that's a great! However if the answer is yes then you know what they can do leaving a maze of tunnels everywhere.
I've had my own share of experience with them. Finally one year the tunnels disappeared. I can only assume that the combination of Gordon's Mole & Gopher Killer and treating the lawn for grubs actually worked.
The bad news is that it seems like in about 2-3 years I find tunnles appearing again. I noticed that they start coming from the field next to the back yard.
So far I've been able to always get rid of them but I've learned that I have better success with using more pellets than the direction calls for. And to start right away at first sight of a tunnel.