Quote dum-dum="dum-dum"Grow up.
It means nothing of the sort, the last bit about joking is your "get out" when you're wrong. "I knew that, I was just joking all along", yeah that's right, we've worked you out.'"
Then you have arrived at the incorrect answer then.
Like I have said I make mistakes and admit it.
In this case.....I have nothing to admit to.