Greetings!

The crontab(1) control utility declares two options:

	-e	for editing crontab,
	-r	for crontab deinstalling

This two key are located on the usual 101-key keyboard just at the same
place:

	[q] [w] [E] [R] [t] [y]

This is very easy to press [r] key instead of [e] (and I've already some
times doing that :-/). Thus, my proposition is a replace the "-r" key by
"-R", or "-p" (as for "prune"). This will avoid such usability problems.

--
Best regards,
Mishka.