We have alway left Our oldest dog (9yrs) outside by himself when people were at school/working, But there was usually someone home every couple hours (weird self employed jobs with weird hours)
But when my parents bought a bar, Bruno started getting BIG and bored, Solution-Get another dog.
Hes still big, but fitter. He has someone to sit in the sun with when noones home, Probably happier than ever :lol:
So if you want a dog, and have long work hours that will lreave the dog alone for hours on end. Get 32.