I'm with you mama waving my rolling pin. My dad did this all the time, then one time he gave my LO a piece of my mom's hawiian (pineapple) birthday cake. She puffed out immediately and we had to rush her to the hospital. Mom and Dad listen to me now when I tell them not to give my baby food.
I have to say though, my dad spent the whole time in his room crying while we we at the hospital. He never cries. It broke my heart but now he listens.