...with their grubby little shoes that have potentially tramped through dog shit and who knows what else. People put their food in there!
Pregnancy hormones making me very grrr today so everything is more irritating than normal, but still. It pisses me off that I'm denying myself all sorts of foods I like to avoid the slim possibility of complications (I've lost two pregnancies already this year so being super paranoid and doing everything by the book this time), but I don't know what contaminants are being introduced to my food trolley by people who can't say no to their kids. It's not difficult to explain that we don't put shoes in places where food goes. Bet they wouldn't let their kids walk around in their shoes on their kitchen benches.
Grrrrr! 
...and breathe!