Some of the people can't tell their [backside] from a hole in the ground
Always on the road driving
Getting screwed out of stuff (parties, lunches, etc) because you are not part of an office
Some really, REALLY inane people in "leadership" positions
Forget about having a life outside of work as you have to "be available" 24/7... and not get paid for it
Covering other territories in addition to your own for weeks and never so much as a thank you
Constant changing of decisions/directions from 'on high' with no explanation or warning
Being lied to by upper management on a regular basis
Being sent to perform installs without any training for it, and then not getting the installer's bonus because you are not an installer
Being put into impossible positions by upper management and being told to "make it happen"
Being ordered to make after-hours calls when you in the process of leaving to go on vacation just because the boss's boss wants to swing his [dangly bit]
No raises for three years but the company is hiring new people for your same position at a higher hourly wage
Having to go and do someone else's job because they can't be bothered to put forth the same amount of effort as you
How many more do you want, I could go on for hours...