Counting Too Many Heads
Many viewers might think that most modern-day cartoons and animations are inappropriate, but one example proves that inappropriate stuff has been around in cartoons since the 1960s.

Source: Facebook
In one episode of The Flintstones, Barney and Fred were looking for a costume, and Barney wanted something to make him look tall. Fred asked, “how about another head” to which Barney replied, “Another one? What do I need three of them for?”