One of my most hated clichés is one commonly given to children by their parents when the children are asking to do something: "If your friends jumped off a cliff, would you jump too?" My favorite response comes from a dialog between a young Dilbert and his mother in Scott Adams' comic strip "Dilbert":
... Escaping Delusion ...
"Dance like it hurts, Love like you need money, Work when people are watching." - Dogbert