Happy Punctuation Day!

SL-punctuation
Punctuation is fun!!  Do you have a favorite punctuation mark? Maybe you are partial
to the serial comma, which can cause problems when omitted and inspired these Columbia University undergraduates to write this song:.
Or perhaps you object to the ampersand,
which seems an affectation, & I disdain it as a rule except when  
in a hurry or talking to the ghost of Robert Creeley.  Some people think
the semi-colon (Joyce called it the semi-colonial) is ostentatious or
pretentious or just downright ugly. I don't: When used judiciously, the
semicolon can be elegant.

Your turn.

— sdh