Border Collies are widely regarded as the smartest of dogs. I say that because it's not readily apparent from this video below. This 7-year-old Border Collie named Fant, who lives in Norway, just discovered the bowling lane buzzer, and he's thoroughly freaked out by it.

There is actually a lot of intelligence being displayed here: the buzzer takes a little while to reset (there's a little red light while it's in cool-down mode), and so it doesn't go off every time Fant sticks his nose in the lane. This confuses the living daylights out of the dog, who keeps trying to repeat the experiment to figure it out. 

Sources: Glenn-Ove Ellingsen | Laughing Squid