i saw one time happened in carrefour city center, a nepali labor drink one coca cola on the right spot and after finish drinking, he walk out. pretend nothing happen.
but thanks god, there is security camera watching him and as soon as he leave the carrefour the security take him down and bring him to control room. they investigate him, soon or later he confessed and admitted that he have drank the coca cola.
the security give him fine 100 riyals or he have to go to police and the police was there waiting for his response. and i believe he dont have money to pay so the police took him away.

what a sad story. it was on the hot summer day on doha. and this man must be really tirsty. he must be working nearby city center as his lunch break he hangout in there.