Here are two things
you should not say in
Thai.
In
Thailand they pronounce r´s like l´s in some parts of the country.
A delicious dish you might want to sample in a restaurant is
gengri = potato curry. But if you ask for gengli = whore... You see my point.
i hayer = son of a bitch
Would you like to go the Ranting in Various Languages metanode?