I'm scared :S

My house is under siege from hobos.

I was in the computer room, which has a window looking out onto the drive way, when a guy in really tatty clothes ran past making whooshing noises. I was quite shocked, considering he had run through "my" driveway, seemingly coming from "my" garden. I checked to see id there were any more, and sure enough, there is one in the garden. Sitting on the grass, eating snack a jacks. I opened the door and went out, hoping to try to get him to leave, however the one left just ran up the other end of the garden and continued eating. I really can't bring myself to make him leave, and I've decided to just let him be, he seems happy enough. I'll let you know if the other one comes back or anything new happens.

Spray him with the hose.