The context of the following conversation is Addison saw a sign on the side of the road that said to slow down for the construction crew.:
Addison says Oh, that is funny!.
The friend responds What has tickled you this time?.
Addison responds I just drove by a sign which read, "Slow Down for Construction Workers".
The friend responds What's so funny about that?.
Addison responds I slowed down and there was nobody there!  So, I stopped tha car and changed the sign to read, "Slow Down for No Reason At All".
The friend responds Nice!.