As sometimes happens to superheroes, Green Arrow died saving innocent civilians. And as almost always happens in comic books, death didn't stick. Having returned to the world of the living, in 2002's Green Arrow vol. 3 #16 he begins to put his life back together and find out what he missed while he was dead. And he starts where all of us would start, with his own funeral. It was a private affair, just friends and family. And one guy he's never seen before in his life. So he does what anyone would do in those circumstances, he asks his friend Superman what the deal is:
Superman spying on everyone in a 20 mile radius. Check.
Superman joking about a woman cracking her head open. Check
Superman doing it because he's happy to have his friend back. Double Check.
And that's: Why I Love Comics!