Thank you for your replies Kiwong, Remus and conscious_mindz. @ Remus, no they are not playing late at night, but I work at night in a hospital, and need to sleep in the afternoons... @ conscious_mindz, I baught a stream called liquidass, I sorry for the word, but that's the product name, it makes a horrible smell, and I have throwed two bottles of it in the place where the kids are playing, they stopped playing for about 1 hours, and then continued... So don't try this, it was a complete failure! As for earplugs, it didn't work with me neither, because they slam the ball to a metalic door, and you can hear the BOOOM like it is in the house. I am thinking of buying some fireworks and firing back at them, what do you think guys?? Or will they think that I entered the "Game" with them?... I thank you again because you are helping me.