The ground

Kim calls all floors "the ground," despite my continued teasing. Today, we discussed who was responsible for the giant hairball in the shower. She suggested that it was my fault, since all the beard and sideburn trimming I ha done had fallen on "the ground," i.e., the bottom of our bathtub.

me: Now this is the ground, too?

Kim: Yeah, anything you stand on can be called the ground.

me: What if I stood on the coffee table?

Kim: That could be the ground, for a moment.

me: What if I stood on the bed?

Kim: No, the bed is just the bed.