Dogs are probably baffled by a lot of things people do - leaving home for long periods of time, closing the bathroom door when dogs want in - people are just full of oddities.
This dog, however, was pretty used to his human's quirks - until he made a treat disappear.
When this unforgivable deed took place, this dog was just minding his own business, waiting to receive the delicious snack he rightfully earned.
The human put the treat in his own hand and closed his fingers around it. But when he opened his hand again ... the treat was GONE.