Ah, a little inner evil Sammy! He tries to be good, honest.

But sometimes the evil just slips out.

Anne

Naah, it was just the sickness.

u know that part kinda creeped me out too...to this day, i still don't know whether it was dean's hallucination or sammy actually gone bonkers coz well sammy was kinda crazy back then...i love how the writers wrote this...the episode was a gem and credit to them and dean/jensen who was amazing...