How do you know when you have to much snow?

You know you have to much snow when your shoveling the roof off and the dog jumps up on the roof with you. As we shoveled off the house roof it piled up so it's even with the top of the garage roof so Ginger would jump up on the roof and then A.J would slide down the roof on his butt and Ginger would jump off the roof after him. Then they'd do it all over again. So much for helping me shovel off the roof.