Do you try to censor your language around children (yours or otherwise)?
I am much better at watching my mouth around other people's kids (and appreciate it when others do the same for mine). But I am much more likely to lose it around my own at home. My Mother must have an iron tongue or an iron will or both, for I have never heard a swear word cross her lips my entire life. She won't even say "butt" -- it is your "bottom end". I, on the other hand, do not have such willpower.
I do try, but sometimes it just seems "gee whiz" just doesn't adequately cut it.