My point: I don't have a wristwatch and they make me feel uneasy. When I was in the university, I used to leave one on the desk when taking an exam, to control the "tempo" but that's all. In spite of that, I'm very punctual. When I was younger and didn't own a cell phone, I checked clocks set in traffic lights or shops to know the time.
My theory: rationals, specially the serious (gamma-delta) ones, have wristwatches. Feedback this!