Where Have All the Nice Managers Gone?

In my last job I had a manager that I referred to as the scowling manager. She would glare at me. In the bathroom she couldn't even look at me and when I tried to make small talk, she gave me the "are you talking to me?" look. Not in a Taxi Driver way, but in a jr. high way. This is a long story as to what the manager's problem was, but let's just say for normal people, there was no problem with me. She was odd.

Previously I had a non-carb eating manager who would go crazy around 3pm and chomp on dry cereal. I would hand her some pretzels I had and she would devour them like a wild animal. (you would think she would catch on and integrate a few carbs into her lunch) Oh, we shared an office. She had me sitting at a table 1 foot from her desk with a shelf that was above my head. I had to sit hunched over, and if I forgot and sat up, I would bang my head on the shelf.

I'm not sure why I've had such jerks for managers lately.