Remember they're not all like that.
It's the same as saying all Brits are loud fighting drunks, just because of what you see in Benidorm pubs... Parts of Thailand are like Benidorm for the Chinese. Not too far and cheap and it attracts a certain type.
There is a reason the CCP are trying to educate their citizens with leaflets at airports before they travel as it's embarrassing for the whole nation.
Unfortunately, not many seem to take notice yet.
The chief of the Thong Lo station made a point in a statement that police officers around Bangkok have been actively checking up on restaurants and entertainment venues to ensure all the brown envelopes were collected.
It gets MUCH worse - MUCH, MUCH WORSE.
Wait a few minutes ....
That's known as "fanning". Incredibly inaccurate, you simply fan / sweep the hammer while holding the trigger back.
Very, very few revolvers have external safeties, but it takes a heavy pull on the trigger to cock a double action as it's all manual, and most modern revolvers have an internal safety that means the revolver can't be fired without pulling the trigger.
An experienced "action" actor could have been expected to notice, but at the same time it's not their direct responsibility and they should be shown the state of the weapon by the person handing it to them.