The showers in my son's dorm at Virginia Tech turned scalding hot whenever a toilet was flushed.  To warn others, residents would yell out, "Flushing!" each time they flushed the toilets.

During one of my son's visits home, a friend stopped by to chat for a while.  I was explaining how my son was acting more distant now that he was in college, and that he didn't tell me all about his life the way he used to.

Suddenly we heard my son call out from the bathroom, "Flushing!"

"Wow!" said my friend, "How much more do you want to know?"