Ok, so my former neighbour and I were kind of friends for awhile, talked every day and drank alot of beer. After a while though, I really came to realise how little I was getting from him, and how much he was benefitting from knowing and talking to me. Essentially, he's incredibly stupid. So, about a year ago, he decided to move out, and I saw this as my chance to get him the fuck out of my life, I was really fed up with all his stupid shit as this point. I told him "Hey man, nice to know you but when you move, I think it would be best if you and I go our separate ways and don't contact eachother anymore". What I meant to say was "Hey man, I've come to realise how fucking stupid you really are, and I really can't waste even a second more of my life talking to you. It's like I'm litterally losing IQ points just listening to you talking".
So, heres the problem, this idiot still comes knocking on my door every few weeks, looking through my windows to see if I'm there. I have not opened the door for over 6 months now, and he still comes knocking. Sometimes, he even brings buddies to my house to "visit" me, like nothing has happened. I know that talking to him won't help, so how do I really get rid of this guy? Any advice welcome