I am sure most of you know ,but for the rest and a reminder .Labs and some other breeds will literly work or play them selves to death to please us. A friend called his lab died from heat stress after playing with the kids for 30 -45 min in 85 deg. temp. tha lab was not overweight or have a medical problem that they knew of . He was on the way home , how will he tell the kids 7 ,8 and 10 that Thore will not be coming home or why. Work your dogs smart in the heat !!!!!!