Peter and Stewie Griffin went on Kimmel and they were predictably brutal

Animated characters can be so cruel.

To mark the upcoming 300th episode of Family Guy, Jimmy Kimmel had animated stars Peter and Stewie Griffin in his studio audience on Wednesday night.

The Griffins were as caustic as ever, mocking Kimmel every chance they got. They revealed very little about the 300th episode itself, though, with Peter disclosing it's "somethin' with the dog and the baby, I dunno."