A teacher in a Glasgow school asks the class who supports Celtic?
All the class puts their hand up,except wee billy.
Teacher asks who he supports,and billy says Rangers!
Teacher asks why?&billy says. "my parents both support them so i do too"!
Teacher says you dont have to copy of your parents_ what would you do if your mum was a prostitute and your dad was a junkie?
Billy says "I'd support celtic like the rest of you manky b*****ds!