 There's been more stuff in the news about that but really we haven't talked a lot about it and I see a lot of people that prop up their calf hutches but I just want to emphasize today how important it is to really think about heat stress. We don't often think about it partly because our cows we see an instant impact of heat stress. We see cows that don't conceive, we see milk production drop in the tank, we see cows in the barn that look pretty miserable but