(Obviously not a serious topic!)
I have a very nice berry and chilli tea, but it's too spicy. Tried it with a bit of milk and it tones it down so it's still spicy but bearable. As I was putting in the milk I felt like a total heathen. I'm sure someone's going to drag me out and burn me at the stake for heresy! 
I do know someone else who does this, she puts milk in lemon, ginger and honey flavoured tea, so I'm not alone!