I have them in my pond. I had a trapper come in a put down conibear traps ( legal in Canada). He told me they are hard to trap this time of year and near impossible in the open water (still ice up here). He told me they will not come to a lake. I took a few shots at mine, then it became wary and I didn't see it during the day anymore. Maybe I hit it? I hope you are a good shot. They are very interesting animals but they can wipe out your pond.