Hmmmm, Dave, ya mighta warned him, not everyone is a rocket surgeon or a brain scientist.
My worst dry ice experience to date has been carbonation of food stuff that isn't as nice carbonated as not. Dry ice in an ice chest, wrapped up to slow its rate of sublimation and used in place of ice proceeded to carbonate tomatoes and stuff. I like my fizz in beverages not my vegies and especially not in sliced tomatoes in a burger.
Pat