Once in a while when I was a kid back in the 1970s, the local channel that featured the classic Looney Tunes episodes from the 1940s through 1960s would play a cartoon (maybe a Chuck Jones?) that featured a guy in a bar who ended up being stopped mid-sentence by something that scared or shocked him stiff. Here's where the old memory gets hazy. The thing that stopped him cold might have been the bartender smashing a fly with a flyswatter. The frozen guy just sat there at the end of the bar counter for years. Anyhow, the look on the frozen character's face used to scare the heck out of my eight-year-old self, and I used to leave the room or quickly switch the channel when I saw the hated cartoon start playing. Does this sound like something anyone has seen? A big thanks for any tips.
Edit: It's "Finnegan's Flea" from 1958. Not a Warner Brothers cartoon, after all. Here's the toon on YouTube: https://www.youtube.com/watch?v=NU_6QAtV0Cs