No, dogs and people are all ok.
I finally ran out of the Expresso Crisp M&M's today. M&M had a contest back in the spring, they released three limited edition flavors, the Expresso Crisp, Raspberry Crisp, and Mint and had people vote and whichever go the most votes would be a permanent addition to the line up. Well to my dismay, Mint won. So I bought every bag of the Expresso Crisp I could find, at one time I had 15+ bags. I haven't been able to find any in stores since September, so my supply has been dwindling, and today I ate the last ones.
Tis a sad day indeed.