Working sometimes for 12 hours on our feet, running non-stop.
I learned that no matter how hard you try if the boss does not like you you will never advance, especially if you have a flaw.
Some managers were nice but they were micromanaged by the ones who weren't.
The co-workers were nice.
Finding out that I had worked so hard for nothing, When I left they hired my replacement full time with benefits, everything I had worked for and never been able to achieve.
The other workers were the best part of the job.
If you have a physical flaw they hide you in the back away from the public.