Does your dog steal food?

Do any of you have a dog who is what my vet calls a "garbage gut"? My GSD can eat anything and it never bothers her.She has stolen and eaten entire pizzas,spoiled garbage,etc.Last Friday she ate an entire pan of spaghetti that was sitting on the stove.It was enough to make three or four servings. Her legs are so long and she is so sneaky that even if you put the food on the very back burner she can still reach it,and she's very,very quiet about it.I usually put food away,but sometimes I forget,and I forgot on Friday.It didn't do a thing to her,though.My cousin's Lab,on the other hand,eats one Mini Wheat and gets explosive diarrhea! I am worried about bloat or pancreatitis,and as I said,I usually do put the food in the fridge right away.But I was just curious to know if anyone else has a dog who's a "garbage gut?"