I have an aversion to people who put up signs around a work kitchen area. "Please put your plates away", that sort of thing
It's like a form of permanent nagging.
So I'll put up my own signs with messages like "UNAUTHORISED SIGNS. It has come to our attention that people are placing signs in the kitchen area without OH&S review or fire hazard risk assessment. Please refrain from doing this in the future"
Ok, so not exactly high on the scale of workplace dissent, but at least it seemed to troll a few of the OCD's, which was my goal
( cumquat may will not be commenting further on the allegations, Mon 20 Apr 2015, 1:23, 3 replies)

you could always just put your plates away instead?

( rofl harris, Mon 20 Apr 2015, 12:53, closed)

I have done this too.
Our old work kitchen was plastered with passive aggressive notes from annoying twats. I took them down then put one up pretending to be from the cleaners saying it was unhygienic.
(SnowyTheWereRabbit the Leporid from Hell, Mon 20 Apr 2015, 13:43, closed)

Not OCDs but CDOs please.
(I like to keep things in alphabetical order.)
(Tugnut I got them all..., Tue 21 Apr 2015, 8:28, closed)