I once had a role commissioning a set of servers and associated hardware in, at the time, what was Europe's biggest data centre. The servers housed various internet and intranet offerings that were critical to the company. Given my background as a software developer, it was an odd number of days when I was standing in Matrix-esque aisles pulling out cables in order to simulate failing hardware etc.

At the time I thought it was a little ridiculous, however, looking back perhaps just not quite as ridiculous as not doing it.