There is nothing worse than when a dog throws up m&m's. Autumn has eaten her way threw many a bag. Don't worry, a one pound bag, which I'm assuming it was, is nothing for a dog that size, as long as he didn't eat any of the plastic bag. Autumn can get into a plastic sealed, gift-wrapped tin and take out the plastic, sealed bag of m&m's and bit a tiny hole in it to suck them all out. Funniest thing on earth, she always knows which tin has the m&m's. Unfortunately she throws up watery m&m puke all over the house afterward. ewww