A couple of months ago my stepson was involved in an accident (he is fine, car totaled). In the back of his car was about a half case of pop, since he was hit in a rear quarter panel, this pop was treated rather harshly. Some of the cans exploded, others were severely dented. After cleaning out his car he put the remaining cans of pop in our garage. This morning my wife was cleaning out the garage and found the still sticky dented cans. A couple of them felt distinctly light, we popped the can, finding about 8oz of pop in a dented 12oz can. Note that the pop was still well carbonated, it popped when we opened it, and was noticeably bubbly in the measuring cup. No we did not drink it! Here's the question, how did 4oz of pop get out of the can? If it leaked how did it not lose carbonation????