I have heard my doctor refer to his employees on some occasion using the phrase hen ben (I assume he meant 很笨). When I first heard it I was a bit bothered. Should I be upset when this term is used or is this "light teasing"?
I've tried to evaluate this snippet a bit via research and came up with this discussion on Yahoo Answers. A wider variation appears on CantoDict (Cantonese/Mandarin). I guess there are varying degrees of insults and I'm simply curious to what extent this colloquialism applies.