Recently Marissa fed Dax a treat after having him roll over, then said, "I wish I could have that."
"Have what?" I asked. I thought perhaps she wanted to learn how to roll over.
She pointed to the dog biscuit that Dax was devouring and said, "Have THAT."
So I told her to go ahead and eat a dog biscuit. Seriously, there's nothing in there harmful to humans, it's just that most humans don't prefer dog food.
She helped herself to a dog biscuit and then asked for another. I think that dog biscuits and crackers taste the same to her.
I cut her off at one.