Drinking Games - Sevens

This game is called seven's and works best with more than four people. You go around in a circle and count, the person starting the game saying one, the next person saying two...and so on. You cannot say seven or a multiple of seven or you have to drink. You also cannot say double digit number such as 11, 22, 33,ect...if it gets to your turn and the next number is a double digit number you say reverse and the order goes back the other way...anyone who messes up has to drink!...