Carolina Slim
Superstar
The paperwork the amount of HR related paperwork you have to do to be a manager. My buddy is a manager and he always tells me how shytty it is, the meetings he has to attend. I go in around nine and leave early, he can't do the same. Oh and the pay? I'm about at the same salary level without the headaches. I'll keep my position.
I work in the clinical research industry, and the field is heavily populated with females. That right there turned me off from wanting to aspire to any sort of managerial level. Dude who was my line manager at my last job was new to the role, and he pissed off quite a few females simply because he wasn't trying to listen to the nonsense that they were trying to approach him with; beef with other females, needing to leave early for whatever reason, crap like that. Then if he would deny one (because she was overall lazy) and give in to another (cause she actually worked), then here come rumors of him trying to get in her pants. The amount of handholding you need to do with some folks is enough of a turn off for me, not to mention the political games that have to be played.

