people at work being incapable of thinking for themselves, resulting in me getting drenched in a drainage trench, and then the same people having to rip out stuff they'd installed wrongly, having a strop & generally causing me to get even more drenched.
ps. my default at work is not to get into a strop over little things, as they rarely get better because of swearing & throwing shovels round.. i prefer to simply fix the problem & carry on.