In the words of Stephen Fry:
"There used to be mad, silly, prissy people who said that swearing was a sign of a poor vocabulary, which is utter nonsense. The people I know who swear the most tend to have the widest vocabularies, and the kind of person who says swearing is the sign of a poor vocabulary usually have a pretty poor vocabulary themselves.
The sort of tweedy person who thinks that swearing is in any way is a sign of a lack of education or a lack of verbal interest is just f_-_ing lunatic.
I haven't met anybody who is truly shocked at swearing, really. They're only shocked on the behalf of other people. Well, you know, that's preposterous. Or they say it's not necessary. As if that should stop one from doing it! It's not necessary to have colored socks! It's not necessary for this cushion to be here! But is anyone going to write in and say 'I was shocked to see that cushion there! It wasn't necessary!' No. Things not being necessary is what makes life interesting. The little extras in life."