You're not the only one to do this. My dad was clearing some trees in our horse pasture to create more grass. I walked it out with him and told him what trees to take out, which was most of them, and to be careful of the power line running through the middle of the pasture. He has taken out tens of thousands of trees with the backhoe, so it's no problem that he can do it. But on the very first tree, he forgot all about the power line and knocked the wire off the very top of the pole where it's attached to some ceramic looking insulator.
He said he forgot it was there.
Power company came out around midnight, put it all back together again, and never charged us.
Hopefully that was a lesson learned. I learned not to let him work that close to anything he can damage ever again!!!
Eddie