My 91 yaer old father in law was here overnight and this morning, as usual, he left his bag on the floor by the front door. I didn't know he had food in there, including a bag of those rolled (Pirouline) chocolate wafers. Hanna chewed through the foil and ate about 1/4 of the cookies before I noticed what she was doing. She is playing and appears just fine - how concerned should I be and what should I watch for? Do I need to go get some peroxide and induce vomiting? I am supposed to leave in about an hour to pick up my mother in law from the nursing home and take her in to town - hanna was going to ne here crated for about 5 house. Now I'm not sure if I should cancel?