Similiar toG-Rated Sex andG-Rated Drug, this is when a type of insanity is represented in a child-friendly manner, such as depicting the character simply in a straitjacket or wearing a hat with abig red N on it whilst rolling his eyes in strange directions.
May or may not be accompanied by whacking oneself/others over the head with a large mallet, giving gratuitous kisses, laughing uncontrollably while jumping around like a superball, and an inability to keep one's tongue in one's mouth at any given time.
Needless to say, this doesn't help people's real-life perceptions of mental illness, andit's difficult to imagine races or the mentally handicapped being ridiculed like this.
TheEccentric Townsfolk usually have at least one such G-rated madman (or more!) among the residents. See alsoThe Mad Hatter andAmbiguous Disorder.