What we really get tired of, at least in my experience as a tech and in EMS, are the dental pn, etc. cases where it is truly abuse. Bad N/V/D (to the point of severe dehydration, metabolic alkalosis/acidosis), falls, etc. make sense. Dental pn and such...not really.
If I do EM, I'd really like the following to be my protocol for dental pains:
"Tylenol Extra Strength 2 tab Q4h PO; Toothbrush + Floss TiD a.c. Dental referral."
I mean... they always come in wanting narcs but what kind of idiot gives someone noncompliant enough end up w "emergent dental pn" narcs?! Oh, waaaaaaaai...crap.