Ok, well maybe an explosion is a strong statement.
Anyway, I just had a crazy thing happen to me while changing my oil. And, after a quick scan of the web, this is a relatively new issue now that many of the 3.6l Pentastar engines are aging. This issue seems to only affect model years 2012-2013.
As with all my oil changes, I left the oil filter cap off while the oil drained. I was actually in the process of attaching the new o-ring to the cap, and pulling the new filter from the box when BANG! The sound of a gunshot echoed in the shop. On the floor was a long plastic piece, and a large spring rolling around. Oil was sprayed on the fenders, under hood, and the floor.