3 times now I have come home and my lodger has left the front door open. I have a door closer and it hadn't engaged on the latch. I also went to work a few days ago and he had left his window open. Then I opened all of the windows in the living room and went into my room and he stayed in the living room. He finally went to bed and turned the light off but didn't close the windows. I know I opened them, but I don't think that it is always my responsibility to do the final nightly sweep, especially as he was last in the room. He leaves the kitchen and bathroom windows open too.
I have ground floor flat in a slightly dodgy inner city neighbourhood. I'm always concerned about being burgled and no that the insurance won't cover it.
This may have happened more but I leave for work earlier than him and get back later.
He is a friend from a social club I attend and he is extremely laid back and easy going. Probably why he just says that he's sorry every time I tell him off.
How can I get it through to him or am I being unreasonable thinking of getting rid of him because he is just too much of a liability?
Thanks