It's worse; we have John blubbering like an idiot because Mike made a simple mistake.
Panel 1: We start off with John's silhouette, which is next to the car tell Mike that he must have left his keys on the driver side of the car and ask if he's seen them; Mike mutters "ummmmmm."
Panel 2: His trying to soften the blow by telling John that they might have gone up the vacuum hose simply makes John angrier; that's because he says "What do you mean, 'might have'; where are the keys?"
Panel 3: Mike points to the vacuum and says "in there."; this really gets John upset.
Panel 4: Instead of going to the manager and explaining what happened, John hugs the vacuum and cries; this causes the next guy in line to ask "Hey, buddy, can I use that thing or are you starting a relationship?"
Summary: I expect to end the week with an eerie parallel of the strip wherein Mike inadvertently broke the ornament he bought; rather than admit to the existence of honest mistakes, John busted his chops about something that was ultimately his own damned fault. I mean, who leaves their keys in their car?