Human hamster wheel

It might be lucky for all of us – up or down.
If we regret our decision – we can always change.
Repeatedly and again again – no restrictions on number.
The only thing that is forbidden – totally forbidden.
It’s stopping on the stairs – while figuring out whether to go up or down.

Think a little girl came up with this clever invention,
when the girl saw her cute hamster had a caged wheel on her desk.
This talented girl after she has finished school – ready for more challenges