Pros
The job is monotonous, mentally draining, and degrading!
Cons
I often found myself performing the same procedures and tests repeatedly, which can become monotonous and mentally draining over time. And for all the hard work, I was paid very poorly. I eventually left the job because I couldn't take it anymore. I was performing a routine vision test on a customer. I accidentally made a mistake in entering the data into the computer. The owner came over and started yelling at me, calling me incompetent and lazy. He said that I was failing at my job and that I should be fired. I was so humiliated and embarrassed. I tried to apologize and explain that it was a simple mistake, but he refused to listen. He just kept yelling at me until I started to cry. I ran out of the store and went home, feeling completely defeated.