Eye need to think before I speak

Today was one of those days when my mouth said things before I'd fully engaged my brain, one of those days when I said something then realised I'd actually said it out loud and not just in my head.

A donor came into my health check booth, she had a brown eye and a blue eye and we started talking about it. I think it is called heterochromia...anyway, she said she had done some research on it and it turns out that it is linked to inbreeding. She went on to say that her son has inherited it too, straight away I asked, "Oh so do you have a brother?" "No I don't," she replied....there was a pause and then she laughed phew!!!