No you had it right. Jed's Beavis. Butthead was just a hair smarter than Beavis.
Hey, my dad was a doctor* and I took biology my sophomore year in HS. Anyone need surgery? I can totally do it, I swear!!
(JK, my dad wasn't a doctor, but using their logic, this would work. Of course, Duggar and logic don't belong in the same sentence.)