*****ing groceries while ringing them up

Shame on you for ****ming students. I went to Checkers today to buy groceries and within my grocery list was 2 packs of nescafe gold cappuccino sachets. When I unpacked my groceries I could not find the second pack of cappuccinos I double checked my slip and it was on there I double checked my car to see if it had slipped out the packet and nothing, I double checked my cupbards and fridge to see if I hadn't accidentally put it somewhere in there and nothing. And this is not the first time something like this has happened. I know there is a senior man who has had this complaint the other day. Is the staff *****ing our groceries for themselves while we're not looking? Shame on you.