This is fantastic! I've had a really stressful week - this thread is just what I need. Teaching the digestive system to Y5 this week - children had diagrams in front of them. I asked a question to which the answer should have been "blood". My most innocent couldnt help but call out repeatedly "a nuss, a nuss". It took me a few moments to realise what he meant, so I corrected and said "it says 'anus'". The lad seemed to have never heard the word before, and continued to call out what he thought was the correct answer "anus, anus". I had to tell him that this was simply the correct pronunciation, not the correct answer.