Diet
Did you hear about the snooker mad monster? He went to the doctor because he didn't feel well.
"What do you eat?" asked the doctor.
"For breakfast I have a couple of red snooker balls, and at lunchtime I grab a black, a pink and two yellows. I have a brown with my tea in the afternoon, then a blue and another pink."
"I know why you're not feeling well", said the doctor, "you're not getting enough greens!"