On 2 seperate occasions, while using a clerk check out line, I have had on each time one bag not given to me. Lost in the shopping cart and not noticed it as missing until I returned home. Returning to the store, with receipt I was told as it was not noticed AT THE POINT OF CHECK OUT, it was my fault.
Both times it was only one bag, of high cost items.
One time an accident. twice is suspicious. Especially as on each occasion the clerk handed me what I thought was the last bag and said the tag line "thank you for shopping..." giving one the impression that all items were handed over.
NEVER use the check out clerk lines.