Creepiest Shit In Your Childhood

[VaeVictis]

I can't find a picture anywhere, but there was this cartoon by Steven Spielberg called 'The Family Dog', which briefly showed a person named 'Grunga', an assistant of the head of the dog pound.  He was huge with green skin, red lips, and a twisted smile.
I tried to watch it again to overcome, and it turns out he ends up getting his butt handed to him by a little terrier, but good Lord, his face haunted me for years.
Edit: Found a clip:
[youtube]c-Xm4V8ihos[/youtube]

For some reason I have more nightmares as an adult (anyone else?), I don't really remember anything beyond the normal as a child.  But now I'd rather not talk about them.