yeah, hey look, I was an antique dealer - that was an old antique dealer joke...
So, a group of friends have been getting together for years... they have told the same jokes so many times that they have them numbered.. one guy says, "33" and everyone laughs.. the next guy says "47" and everyone laughs - the next guy says "17" but nobody laughs... one guy looks at another and says, "he could never tell a joke."