I was at a burger place in Bangkok recently and when the bill came, every item was shown in Thai and English except the service charge, which was only in Thai (

I was at a burger place in Bangkok recently and when the bill came, every item was shown in Thai and English except the service charge, which was only in Thai (ค่าบริการ). I thought that was rather sneaky but clever, because the overlap of “people who eat expensive burgers in that area” and “people who tip” and “people who can’t read Thai” probably covers a majority of their customers.