i think your saying this because your wish didnt come true to the extent you wanted it to come true to. For example my friend wished for his father to win the lottery. The next day his father did but only won 5 dollars.
My guess is something along the lines of this happened to you and you didnt notice the wish did come true.
Either that or the spell didnt work for you and your blowing off steam. Or your just trying to be rude and childish for your own personal ammusement or gain.