I have heard some talk about them being brothers but I don't think so.
Regarding guy with Singapore regular customer, I didn't hear the part about disagreement between him and boss.
What I heard was that he wanted to be away from work a few days during New Year (Singapore customer invited him to Singapore and paid for his air ticket). Whether he was given permission by bar or not, I do not know.
What I do know is that he went to Singapore for few days. Then he went back to Bangkok and "he no work at bar" according to my guy.
Two weeks later. I happen to bump into him on street and he told me he's moved to Dreamboys. When I ask him why he's not working at Freshboys, he just replied "boss no want me."
Nice guy. I offed him twice last year - when my guy was away for Tet!