With the Lawnmower

Woman #1, wearing an arm cast: Yeah, so my husband broke his hand now, too.
Woman #2: How'd he do that?
Woman #1: I ran it over with my car.
Woman #2: Why?!
Woman #1: Well, he ran mine over first!
Woman #2: I guess I can see that as a good reason...

Shout-out: overheardinlakecounty.blogspot.com