There is a lot of debate over food labeling, and ingredients and may contain statements.
I got a kick out of this one from Guardian Angel Foods No peanuts, No Nuts, No dairy, No Eggs “May contain traces of happiness” Guardian Angel Foods allergen - free desserts.
Nut Free Bakeshops
Dairy Free Bakeshops
We have all debated or questioned may contain statements. Some have written letters, or signed petitions. I like “May contain traces of happiness”