My boss asked me to help him pass the drug test by loaning him some urine (I declined).

One time after closing the sale of a car, the shop swapped out some damaged parts and claimed the new owner was responsible. It was at night so he hadn't noticed the damage before driving off the lot.

There was also a nonstop flood of white-lies to try and build rapport with customers. Every salesman had a kid the same age as the customers or a cousin who worked at the same company.

I was relieved to get out of there & started working at a software company instead. Despite how much I hated the job, the sales skills I learned there have served me well.