Growing up, our family dog was a golden lab / German shephard mix that my parents adopted from the ASPCA shelter. Mom was adicted to Breyer's vanilla fudge icecream, and so there was basically always a half gallon container of that in the freezer.
We must've gone through more than a container per week of that horrid icecream in summer, and every last one of them went onto the floor for the dog to lick clean. I guess my parents didn't know chocolate was bad for dogs... and apparently, neither did the dog.
Despite being massively overweight, that huge dog lived until age 18, when my mom finally had to have it put down due to bad arthritis in her hips. Go figure!