Cameron Diaz was on Jay Leno last night and spoke about a rather taboo subject - telling the late night host she conserves water by not flushing every time she uses the bathroom.

Diaz said, “It’s one of those things that is just a lifestyle choice. I was brought up that way so it’s something that I automatically do. I’m rigged that way.”

She added, “I do follow the, ‘If it’s yellow leave it mellow, if it’s brown flush it down’ saying. I believe in that 100 per cent. But there are a couple of rules. You can’t go more than two or three times, if it’s consecutive, if you’re drinking a lot of water, without flushing. But if you have coffee or something, it’s going down.”

That’s awesome for Diaz and the environment, but we’re hoping she lives alone!