三人行，必有我师(焉)

I think you'd be hard-pressed to find someone who considers any of these even mild swears
Ha yeah fair enough, it's the same in Japanese, I guess. (I remember as a baby Japanese student asking my 学姐 "How do you say 'I'm screwed' in Japanese?" the day before a test; she looked doubtful and said ..."困った?" which just doesn't have the same ring to it.)