Everything in it was just... so right! The heartbreak on Dick's face when he thinks Muttley's dead, turning immediately to outrage when he realizes his terrible dog just pranked the everloving shit out of him.

The timing for Muttley's laugh as he wakes up, exactly right to transition from 'heartwarming reunion' to 'oh right these two are a couple of Grade AAA assholes'

it's REALLY good