It is ok as long as it is also funny. From the scene in which Roger Rabbit escapes from handcuffs:

Eddie Valiant: You mean you could've taken your hand out of that cuff at any time?
Roger Rabbit: No, not at any time, only when it was funny.
"Wow, what you just did was incredibly offensive."

"That's OK, because it was also funny. You know, the Roger Rabbit Principle..."
by bububuffalo May 30, 2013
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