Maniacal Punctuation

Annibale Carracci, Giovane che ride, 1583, Roma, Galleria Borghese“What sort of person,” said Salzella patiently, “sits down and writes a maniacal laugh? And all those exclamation marks, you notice? Five? A sure sign of someone who wears his underpants on his head.”
Terry Pratchett, Maskerade

What do you think?