Selling dairy products after expiry

i bought a couple of things last week including a few yoghurts from PicknPay Sandridge in Midrand. As im about to indulge in my yoghurt now i discover that it says 'use by 09 july 2015. seriouslly??? So you guys just do not bother checking? I mean the 9 th was weeks ago. Do you not have people hired to check stock on a daily especially sensitive things like daily. Im 32 weeks pregnant, this would have not been good for my unborn child! Come on Man!