Today was good. I tricked the team leader into thinking I'd bricked a very expensive module. It's good to be a cunt. "I forgot what it's like to have you guys around" when he realized I was just fucking around.
I've done the same trick with The other shift team leader in the past. Exact same procedure, it's a hard to get bit of kit and we never have spares so when I say I fucked up the terror on the face is brilliant.
The key is ignorance, "yep it's all sorted, but the red LED won't go out and I can't connect to it now, are you doing something on the network?"
They fall for it Every time.