I had the displeasure of working with one of those.
Her former boss later ADMITTED that he had only hired her because of her looks (she did look like a model), but she was dumb as a stick AND was PSYCHOTIC. She worked there 4 years and could NOT file, type, or do anything and would throw a fit if anyone questioned her screw-ups.
Sounds like the one we just got rid of. Except she didn't look like a model. She just thought she did. She wore skimpy little clothes with rolls of fat hanging out for all to see. The guys would shudder as she passed by them.
I LOVE talking about her in the past tense! Woooohooo!
I think she works with me now.