Even the most polite & well mannered people swear. I generally don't swear, but if it's a sporting even or other high tense situations, I may use foul language from time to time. No harm in it!
By good people, I assume you wasn't referring to me, but have a good one anyway. I'm of on a cemetery round( father & brother) & to enjoy a nice family meal.
If you could be an expert on anything..