Fonzie kisses many women throughout the show.

Subtle sexual references.

Much violence is assumed at times, but never seen on-screen.

Fonzie is shot in one episode.

Contrary to popular belief, there are a few episodes where swearing occurs, albeit uncommon. In Welcome Home, Part 2, "damn" is used in a moment of anger.

Joanie does take up smoking cigarettes for one episode.

Richie is given a cigar by one of the party members and later on gets drunk in one episode "Richie's Cup Runneth Over".

Some alcohol consumption throughout.

Although it's obvious how it's going to end, Fonzie's stunts may be somewhat intense to some audiences.