"Ahaha!! Hahahah!! Your -haaah...!- your face was! Ahahaha!!"

Okay, the angry look does help sober him up, so he does. Slightly. He's a bit infected by a case of the giggles, but it's not nearly so bad. It's still bad enough that his voice has slightly changed its pitch to a higher one.

"No no, I was -hah..!- I was getting pissed off at you, but I can't even -hhhh- remember what I was gonna say!"