[codecouponqw]

I don't think it's cruel even though I would never personally do it. Unless you are constantly saying it in an aggressive way you could name them a swear word and I don't think they would be aware of the significance behind the word. Some dog commands/names in other languages sound like rude words to us but really have no negative context when translated.

I have a friend who is named after a day of the week and another who is named after a fruit. Now that is quite cruel if you ask me.