"I know the numbers dont line up, but I already communicated we could do it, so can you make the numbers support it?"
and my personal favorite
"We're launching a new product. Its going to sell X amount of units in year 1."
-'You do know thats half of the current market, right? This product is going to double the market and give us 50% market share?'
"...the year 1 volume is up for debate...."