Grey_Mafia65
LE
I frequently eat a bar of chocolate because of feeling faint in the supermarket. Do keep the wrapper and pay for it though.
Either that or pay first, then eat.
I tend to use the "scan while shopping" function* at Tesco and have on occasion scanned a drink (non-alcoholic) first before proceeding to drink it whilst doing the shopping.
*Yes, I'm aware that I'm potentially doing someone out of a job by doing this. Tango Sierra.