The first night I had my bike, I had planned out a course in my basement around all of the support beams and the pipes for the bathroom rough-in (The basement is unfinished...). Soon afterwards, I found myself riding around the basement.
It was about 3am and I just couldn't sleep. I got out of bed, put on a pair of shoes, and just rode around the basement in circles for about half-hour. My wife woke up wondering where I was, and when she found me riding around in the basement wearing nothing more than a pair of Hanes and Nikes, the look on her face was priceless. She just looked at me, then said, "Okay, I'm gonna go back upstairs now..."
