Odor Tester. Another shocking profession with a huge ick factor is the odor tester. It would be a decent way to make a living if they only had to sniff the products they test, such as mouthwashes, deodorants, and perfumes. But unfortunately that’s just a small part of their job. They must also sniff the parts of people’s bodies wearing the substance. If sniffing people’s breath and armpits isn’t your thing, this strange profession probably isn’t for you.