At first, it would just be annoying, but eventually, your toe would get quite badly damaged, and it wouldn't get much of a chance to heal between stubs.

but you could start wearing shoes so it does not hurt as bad.

You have ten toes, it doesn't have to be the same toe each day.

Can I choose which computer? I could have some old junky one sit around just for my daily crash quota.

You are always using the computer at the time of the crash. If you use one computer 40% of the day and another 59% and another 1% of the day, then the chance of them crashing are 40%, 59%, and 1%, respectively.