Anyone really annoyed by ditzy girls?

I don't mean ditzy girls who have mental problems, more like those teenage girls who act dumb to try and be what they call "cute". I had a one night stand with this girl once (no, we did not have ) we just kissed a bit, I'm 14. But man, I saw her the next day and she was just so stupid. I'm serious, I like hated myself for a week once I got to know her better and figure out that she was one of those girls who acts retarted to look cute. "Oh, someone told me that I can get pregnant if I drink Ginger Ale while my boyfriend eats me out" LIKE WTF? God those type of girls just REALLLLLYYYY piss me off I just want to slap them and tell them to get back in school. God, they piss me right off, anyone else have any stories like this or know some "cute" girls like this? I would seriously ALWAYS choose the smarter one, hot or unhot, girl that I can actually have an intelligent conversation with, over the Paris Hilton look alikes that don't understand what they frig their talking about.