Our head has decided that teachers should not drink water during lessons, particularly from water bottles. There are health and safety issues with hot drinks, which I completely understand. However the banning of water bottles does seem a step too far. In practice, this means that a teacher who is on playground duty could be faced with the prospect of not having any fluid intake between 8.30 am and 12.30 pm. I personally keep a small water bottle on my desk and drink from this when I feel my voice drying up. I know that voice coaches recommend frequent sips of water to avoid voice strain and infections, which teachers are particularly prone to. What do others do?