Good point. For what it's worth, I've done a little bit of work with the Bump team. Given their talent and technology backend, I suspect it's very unlikely that

Good point. For what it's worth, I've done a little bit of work with the Bump team. Given their talent and technology backend, I suspect it's very unlikely that they've ever made a mistake. Also, they user is always prompted, "are you sure you want to exchange X with Y" before the transaction proceeds so you can be sure the bump happened with the person you expected. For more, see the second FAQ here: http://bu.mp/faq.html http://bu.mp/faq.html