I was tending toward three but this merits keeping the 4-star rating all by itself; I missed this the first time I read the book:
"Sally took the black marking pen out of Bernie's shirt pocket and wrote 'Best wishes from Sally Sweet' on Bernie's bald dome.
'There you go, dude,' Sally said.
'Oh man,' Bernie said, looking like he'd burst with happiness. 'Oh man! This is so great.'
'You do that a lot?' I asked Sally.
'Yeah, but usually when I do head writing I have to write a lot smaller.'