Those cartons are not meteor strike proof. I have bought cracked eggs in cartons several times before. That’s when I started inspecting the contents before buying them.
They can crack before/while they get in the carton. Those cartons are handled by various people, transported under varying conditions. Even if they get to the shelf unscathed, any other customer might accidentally knock them off and just put them back like nothing happened.
How about naming the town after a city in Austria, but still the Roman way? Not just once, not just twice, but
(EDIT: I’m having déja vu after the last time had I brought up the several dozen Springfields)