Probably dust, but nothing else.
I have cupboard about 3” over the fridge. I wouldn’t chance putting anything up there because I would probably forget about it, and knock it to the floor if I opened the overhead cupboard.
I keep breads, crackers and cereal up there... and some cooking utensils too.
Besides that, I suppose that they'd get a face full of pepper spray... or an invite
to sit and eat if they come across as a Jean Valjean type.
@jujube I have a popcorn popper that I keep thinking about getting rid of, too. I keep thinking I will use it again but I have no popcorn to put in it.
Daughter shops for me & puts groceries away. Usually when I'm not lookin'. And darned if she always puts my paper towels on top of the refrigerator where I can't reach them. So I end up using anything with a long handle to knock one down and of course if I don't catch it on the way down it knocks to the floor anything sitting on the top of a small freezer parked next to refrig. Gee, do ya think I should remember to ask my daughter to place them on the top of that small freezer?