What’s your bias?

I had a sociology teacher in high school that went around the classroom asking people what their bias is. Whenever a student would state their bias, the teacher would rip it apart. So if the student said something like, “I’m biased against fat people,” the teacher would reply with something like, “Well what if your mother was fat?” or “What if a woman with 8 kids – who was dying of cancer – was fat only because of the cancer?” The teacher came over to my desk and asked my bias. “I’m biased against someone who asks people’s opinions then rips apart the answers.” The teacher stared at me for a moment then smiled. “Smartass,” he said, then moved on to the next student.