Child: How do you spell catharsis?*
Adult Authority Figure: Look it up in the dictionary.
What is that all about? It's a) completely illogical, b) lazy and c) just an attempt by Adult Authority Figure to hide their ignorance. Another example of parental stupidity is, 'If you fall over and break both your legs, don't come running to me for sympathy.' Actually, from a medical perspective, that could be considered sound advice.
Can you think of any other stupid things parents say to children?
*I was a precocious child.