Before landing a Saturday morning berth on CBS, Linus the Lionhearted (Sheldon Leonard) was the animated pitchman for Post's Crispy Critters cereal. The running gag in the ads was that as soon as the name of the cereal was invoked, Linus would be run over by a horde of animal-shaped cereal pieces as if it were a real stampede.
Here, Lolita la Cheeta puts the moves on Linus. Cue the cereal stampede!
Not so sure if Lolita eventually appeared in Linus' series the following year.