Stress
Car sales is one of the most stressful jobs that there is—next to air traffic controller and heart surgeon.
No, you don't have thousands of people's lives at stake...just one: yours.
If you don't make enough sales, you'll have wasted all of your time working for nothing. You'll probably also get fired. If you're trying to support a family on car salesman wages, that's mighty stressful.
Better get your blood pressure checked regularly. Some dealerships even have a pressure cuff in the break room and a portable defibrillator (or at least they should).
