I don’t think you were dumb at all-—I think that rests on the person who thought they could leave it out in the heat to save money. Good grief.
Totally agree with you when it comes to food others have prepared.
My sister-in-law was having a guy do some work around her house...an older black man. He told her stories about going into peoples’ homes, some of them very wealthy, and finding unbelievable dirt...animals walking around on countertops, etc. He said those people would offer him food, and he always politely declined.
He told my sister, “This man don’t eat other peoples’ food and he don’t never do bake sales!” LOL