Yes, he may be lonely, or addicted to free blackberries:-)
For me I don't mind too much, except for the door knocking.

I worry about him knocking on the door when my kids are home and I am not. I can take care of myself but I don't like people hanging around lonely or not when I am not home so I don't want to encourage him.

We'll see how it goes. (I was molested by a very nice lonely old man when I was a kid so my antenna is always up)
Kate