Several times I've had people anchor so close they later dragged into me, and despite that we became pretty good friends after we sorted things out. One time in the Virgins we had to keep moving our anchor because every time we got set some charter boat would come and drop the hook right on top of us, put out 2: 1 scope, and then break out the rum. Finally, after moving about five times we heard this great English accent call out to us, "No rest for the weary!" We looked over and he was hauling up the anchor too. Both of us finally went way out and anchored in 50-60 feet so we didn't have to contend with all the drunk draggers.