A proud new dad sits down to have a drink with his father
"Well son, now that you’ve got a kid of your own, I think it’s time to give you this"
"Dad, you don’t mean-"
"Yes son, I do" *Dad pulls out copy of 1001 Dad Jokes, 5th Edition*
"Dad… I’m honoured…", he says, tears sparkling in his eyes.
"Hi honoured", replies his father. "I’m dad".
Things that aren’t why the dinosaurs went extinct: Exhibit A.