Getting Shirty About Dreams Of Bolivia

(My friend and I have been watching a TV show at my place when he falls asleep. I keep the show on and after a while:)

Character On Show: *yelling* “SHIRTS!”

Friend: *grunting loudly* “SHIRTS!”

(I jump, and look over, realise that he is still asleep, and think nothing of it. 15 minutes later he creepily turns to face me, eyes closed:)

Friend: *mumbling* “Have you ever been to Bolivia?”

Me: “…What?”

Friend: “Have you ever been to Bolivia?”

Me: “…No, dear.”

Friend: “You should… It’s popular…”

(He turned away and started snoring. I continued watching the show, baffled, but without further interruption. When I told him later, he aggressively denied it.)