Always be nice to the IT folks.
I've done IT support as a many-hats activity from time to time, and I know how that world feels on the inside. So for many years I've made it a practice to ALWAYS establish a friendly, supportive relationship with the IT and facilities people. (Not that it's a *good* idea to make enemies anywhere, for that matter.) And always admit your mistakes to IT, especially the bonehead ones.
Aside from making everyone's life easier, this approach yields immense benefits when you really, really need some help from IT or the facilities crew. What goes around, comes around, and when it comes around with a replacement hard drive and a friendly greeting, you'll be glad.