Worst verbal harrassment i've witneseed was on arrival in the USA.
I arrived with 10 Thai executive MBA students for an invited international case study competition. All the students late 20's / early 30's, all spoke advanced English, all well dressed and groomed, all had visa issued by American Embassy in Bkk, several had done previous trips to the US for studies.
I lined up first (entitled to entry on arrival), US passport lady said a polite 'hello', all completed in a few seconds, then a polite 'enjoy your stay'.
Next was one of my students, greeted with anger and annoyance and 'why do you come here?', student tried to pull the invitation letter out of the documents she had put on the counter, p'port lady responded quickly/loudly 'never ever touch my documents', then 'I don't really care and we don't need more Asians here'. Same level of agressive and rude attitude continued.
One of the young male students well dressed was wearing a beanie when he joined the p'port queue but quickly removed it, then waited while maybe 5 or 6 other arrivals (same group) were processed. When he put his documents on the counter the rude p'port lady said 'why were you wearing a beanie before, are you a girl? Truth is that's he's a very masculine champion football player.
Final student in the line was a very pleasant young lady. US p'port lady looked at the uni invitation letter and the visa then said 'are you sure this is legitimate and the real reason you come her, we all know what Thai girls do don't we?' Student was in tears.
