With nearly 60 answers to this question it's highly likely that your answer has already been posted. Please don't post an answer unless you have something new to say
This can be a particular task you find not very useful, a manager behavior, your canteen, some security rule you must comply to, tools they want you to use, commuting, schedules, a customer, a technical problem you encouter all the time, anything, ... please be creative ;)
One answer per thing.
Explain why.
Please vote up on other answers if appropriate.