Too many times for me to count, I take a Bump off my paid flight on ABC and get reaccomadated on XYZ. I give XYZ my Acct# with them or one of their partners and get credit for the flight I take, and then of cause I get the credit from ABC for the flight that I took a Bump off of.
So not Only do I score a free tkt or a Voucher off future travel but I also get the miles on 2 different programs for actually flying 1 carrier between AAA & BBB.
Now thats SWEET