What are in the ear

More an audible funny than a LF, but funny all the same. This was overheard at the water cooler this morning:

Person 1:"I pulled a muscle in my back this morning drying my hair" (both hands above head shaking, showing how said muscle was pulled)

Person 2: "What on earth where you doing with your hands up there?!?! Shouldn't they have been on the wheel?"

Person 1: "What wheel?"

Person 2: (after a small, contemplative pause) "Oh. You mean 'Drying your hair' - not 'driving here'"