He is a complete nut about rolling in the grass. He will drop his ball and then roll all over it too. If he finds a stick, he will do the same thing and then chew it to pieces making him gag on splinters.
Those would be the ones where the sun is still out, but steadily going down. It was late in the day.
He is in pretty good shape for being in the house most of the time. He is quite solid. Thats what I hear every time someone puts their hands on him for the first time.