Dogfooding is one of the goals behind our monthly hackdays -- even if you're an engineer working on our billing system, I want you to get a chance to use the product and demo your solution to a use case that you find interesting. ( http://www.pagerduty.com )

As silly as the end result is, you need a decent understanding of the product to integrate it with SnapChat ( http://blog.pagerduty.com/2013/10/pagerduty-can-wake-you-up-... )