Musician Pom Santana said the clip, posted on his Facebook page, captures the aftermath of the incident at Jomtien beach, as people queuing for the cash handout look on in dismay.
Pom explained that a man in a black shirt had walked up and snatched more than Bt10,000 from the farang and then ran off.
“This is not good manners,” the Facebook user said. “The locals tried to follow the [black-shirted] guy but were unable to arrest him.”
Pattaya City Police Station said it had not received a report about the incident yet.