At a wedding, father toasts daughter and shares a "trying time" for when she studied abroad and had to room with (gasp) a Korean... and not even Korean-American, but a Korean Korean, which so was weird and the person didn't even speak English.
Table all looked at my wife, who tried to be calm and said "well I'm not that offended, he's old", to which we collectively said "no don't worry, we've got that covered for you" and proceeded to discuss/joke about how awful that was, to lighten the mood but convey that it was fucked up.
Just went about our bidness tho, because confronting an ignorant guy at his daughter's wedding about some casual racist BS felt disproportionate as a response.