Um, because I can?

Ah. Okay then. Btw. I already did think about adding a sanity check regarding the input value (because I ~never~ trust user input) but decided to leave it out because it would probably only serve to confuse in this case.

Regarding the different loop behaviour: I did not think about introducing that kind of side effect when I was rewriting the loop. It's something to keep in mind when rewriting code in the future.