This is pretty much the worst setup to the worst pun in history:
So Alfred Nobel walks into a bar. He goes up to the bar, but before he can order a drink, the bartender starts making conversation.
Bartender:"You...you look familiar... OH! I know! You're Alfred Nobel! You invented iron!"
Alfred:"*sigh* No. I just invented dynamite and the Nobel Peace Prize."
Bartender: "oh I'm sorry sir, it's just so IRONic!"
My friends and I are now in constant fear of the line, "So, Alfred Nobel walks into a bar..."