I had a nice private lake, 22 acres, that it took me almost 3 years to convince the owner to allow me to fish there. I always just took my son and nobody else and we fished the place for about 5 years. Great lake, big fish,and always catch and release, except for some panfish about twice a year. The owner fished and had setup the lake strictly for fishing, lots of money invested in structure, dam, etc, and did not mind if we kept bluegill, etc. I took a "friend" one time who had begged me for a year to take him. I gave him all the rules, he could not ever come back unless I brought him, could not tell others about it, close all the gates, etc, etc. One Sunday morning I get a phone call from the lake owner telling me I could not fish there anymore as he had caught my "friend" and two of his buddies in there at 3 AM fishing, and had 8 on a stringer, including a 7 lber. When he asked them what they were doing trespassing, my "friend" told him that I had given him permission. I never could convince the lake owner, justifiably so, to let me fish there again. I have not talked to my ex-friend since that day.