That would be the sound of Mark getting his bell rung…  poor guy, still reverberating in panel two…  But wait, there is a lit fire in the background… what if??

OK, Jeffy- poo, Mark is not an idiot.  Maybe he’s a might dense, oblivious even, but when it comes to overcoming evil, he is unmatched.  Unless of course you compare him to characters with real super-powers… oh, ok, Jeff.  I guess a few thousand dollars’ worth of arrowheads is worth having a murder rap come down on you?  I guess that would spoil your story about Mark being the thief?  Just Saying…