I got on the exercycle this morning and everything was going fine until about six minutes in when the bicycle seat suddenly vanished underneath me.

Oof! Thump!

Yes, once again the should-be-nigh-unto-impossible-for-this-to-happen giant screw with the enormous handle had come loose.

Katie has been playing around with the exercycle (against my instructions) and was in that corner of the room yesterday opening the window (for no good reason), so I have a sneaking suspicion that someone loosened the screw. *sigh*

I am going to keep a closer eye on that thing...