Here's why you should volunteer to get bumped off a flight
I don't know if that is possible any longer, but he made money and a ticket each time. He was clever, while in college he would schedule a flight on the very busiest days around holidays, and then get bumped, frequently twice, and pocket a free ticket, and money for each. He actually never intended to fly, so in the end he would just request the ticket be either refunded, or transferred to a later date. So, for one ticket purchase around Thanksgiving he could get two or more free tickets, and money, then transfer the ticket to Christmas where he would lather, rinse, repeat.
Four plus round trip tickets, and spending money! Seemed like a good deal to me, for not flying on a couple of flights he never wanted to fly on anyways.