In his cartoons, Charlie Brown always gets the football jerked away from him by Lucy before he can kick it; there's a Lucy-type real girl in the park, holding a football watching as he finally gets it.

The E-Trade ad with the baby, he made money so he rented a clown and lots of people have a fear of clowns. The baby "under-estimated the creepiness" (no experience yet, he can trade stocks because E-Trade makes it so easy but he under-estimated clowns, a child's birthday thing, Ronald McDonald, etc. :-)