Wash your hands, if I'm around, at least

While at school the other day, I walked into the bathroom with a fellow student, who we will call 'Bill".  "Bill" and I were talking, and then we did our thing, and then I washed my hands.  Just me.  He stood there talking, and I'm washing my hands.  There were two sinks and I allowed ample room next to me so that we could both fit... but he talked and I lathered, rinsed and dried.  We both left, and I though to myself that I will never shake "Bill" 's hand again.  Or share a cookie.  And he will never touch my Mac, for sure.

Please, wash your hands if there are others around.  Do not lead us to believe anything other than the hope that you do, in fact, wash your hands.

Thanks.