Bad Goose, Very Bad Goose

It seems as if our geese have developed a new and VERY BAD habit. They now spend their days standing at the end of our drive waiting for joggers, trash pick up men, wandering teens, etc to pass by. They must then defend our house against such obvious intruders. Oh, and they also try to bite the tires of passing cars. While this is quite funny to us from the safety of our home, it is not to the intended targets. Full grown African geese are huge and a bit frighting. We are, however, a bit stumped on how to stop them. They are after all wild barnyard geese.