The sweat announcer

I’ve been riding my bike to work for weeks now. As the mornings have been getting progressively warmer so have I.

The office has an infrared alarm sensor at the front door which rings when people pass through. Usually the bell rings once for each person. When I first arrive however, dragging my bike with me, the bell often rings three or four times depending on how hot I am after my ride.

Thus, my officemates can tell how sweaty I am going to be just by counting the bells!