That was exactly my experience in kindergarten. The time that we all got jelly beans, the other children didn't want to eat the black ones that were in their bags. I was willing to eat them, so they all gave them to me. The black ones were probably my least favorite, but it still meant that I got more jelly beans, so I viewed it as a win. A couple of decades later, I had a job where there was a dish of Jolly Ranchers in the lobby that would periodically get refilled. Usually, the yellow ones were the ones left. If that was all that was left, then I would take them, but my coworkers wouldn't. I didn't understand- they were Jolly Ranchers and they were free. My coworkers even told me that if they bought a bag of candy, they would through away the flavors that they didn't care for as much because "it's just candy." (Now I understand that it would have been most frugal for me to have shunned the candy altogether, to save on dental work.)
Current: "black jelly beans":
1. I work in psych. Many medical providers wouldn't work in psych no matter how much you paid them, especially working with addicts. The work is actually probably not as hard as similar paying jobs, as long as a person realizes that people with mental illnesses are just people and there's no need to be afraid.
2. I live in a neighborhood where most people won't live. When I bought my house but before I moved in, someone I know drove by my house to check out what it looked like. He told me that he didn't think I should be moving to such a "bad" neighborhood. I pressed him for specifics on what was so "bad" about the neighborhood, and it turned out that it was because most of the residents are poor and black. So of course I gave him a lecture on racism and classism.
3. My daughter works at a produce market. When produce gets bruised or otherwise unfit to be sold, employees take it home. My daughter tries to refuse some items, but I know her supervisor and her supervisor knows that I will eat any and all produce items. The conversations go like this: daughter "No thanks. I don't like brussel sprouts." Supervisor: "I'm sure your mom does." So then my daughter has to bring the item home, whatever it is.