Situation: all the system is offline because of a error in the firewall, you are one of the only people that have access to the datacenter to go there and solve the problem, you have a broken leg, so no way you get there in a reasonable time, and wouldn't really be easy because the place has stairs and so on (any disabled sysadmins around that could protest against that?).
Solution: send someone else that has access to the place to reboot the damn machine. Not really.. he cannot go in because he is wearing bermudas! ARGH!