Wow, never ever heard of this. Maybe its because in the past 25 years ive never had a dog under 100 Pounds.... Not as sensitive maybe.
My dogs will eat just about anything.....doesn't mean it won't hurt 'em, or that it's good for 'em. I think it might (depending on what it is) make a difference if they ate a pound instead of a couple.
I had a dalmation that chewed up a bag of aluminum cans. Only found about about half of them...wonder what happened to the other half?