A poster that says "date rape" on it is seen on a wall in the background.
The word "AIDS" is seen spraypainted on a set of lockers at a high school.
Sometimes there is light teasing including characters mocked for kissing, characters calling out other girls for being "hot" and older characters in love with younger girls. This never crosses over to the point of being explicit or crude.
A Poster is seen in the background warning about Hepatitis B
Repeated gag in "Old Man Corcoran" features a boy's crotch getting spiked on a fence post.
There are some instances of grown men and women flirting, kissing and saying mildly suggestive things (never to the point of being explicit).
A boy asks his brother if their father just told them a "dirty joke" (the joke in question is actually revealed to be about the Stock Exchange).
A boy dressed as a vampire passionately kisses a girl dressed as a princess, sucking on her neck, which is then revealed to be a bite.
Characters accuse a girl of flirting with a boy and ogling him; she accuses them of eyeing his backside like "a couple of silly gooses".
Some kissing is seen between characters in many episodes, including a boy calling a girl "babe" and kissing her without permission.