What not to do on a Friday

A bike has two wheels in a line,
But this speed-demon husband of mine,
Needs a wheelchair to ride,
With its wheels side-by-side,
And a nurse and two doctors behind.

Barry was riding too fast on his new Bike Friday on Monday. The accident netted him a broken arm, a broken finger, multiple contusions, a black eye, and an extremely concerned but annoyed spouse.