 You can imagine the district nurses are really not very inclined to call in sick saying, oh, no, look, it's too hot, because they know that if they don't go out and visit the people in their care, they're going to die. And so the people that sort of push themselves beyond their thermal tolerance tend to fall into a few categories. There are those with the awful employers that force them. Hopefully in a civil society, we don't have ugly, horrible employers much anymore, but of course some will still exist.