How to say "What's it to you?" in Japanese?


What would be appropriate expressions or idioms to convey the typical English
response:

> What's it to you?

(in a sense that goes somewhere between "None of your business" and "This is
not your problem")

The best I can think of is `あなたには関係ない`. I am looking for other possibly
**softer, more polite** ways of expressing the same idea.

(as an aside, if you have _less_ polite, more direct, I am also curious)

PS: Before anybody comments: I realise that any variation on this _will_ sound
too direct and potentially rude for many situations in Japan, however softly
it is formulated. But the general idea _is_ to be trenchant, in situations
which might call for it... so no need to dwell on the rudeness aspect too
much.

**Edit:** tough to pick from many overlapping (quality) answers, but in the
end, I think Rey's encompassed exactly the nuance(s) I was interested in.
Thanks everybody for the great suggestions!




I honestly don't think there's any way to answer this given the condition that
it should be polite, even with Japanese's overgrown arsenal of euphemisms and
niceties.

I can't think of one in English either; probably because any insinuation of
the sentiment "get lost" is universally obvious.

But depending on the situation, you might be able to get away with something
like:

> ご心配なさらないでください。 (Please do not worry about me.)

Or:

> ほっといてください。 (Leave me be.)

Being the Canadian-raised cynic with juvenile tendencies that I am, I'd
probably say:

> だったら何だっての？ (So what?)

Which in cleanest clothes might be:

> だとしたらどうだというんですか？




I honestly don't think there's any way to answer this given the condition that
it should be polite, even with Japanese's overgrown arsenal of euphemisms and
niceties.

I can't think of one in English either; probably because any insinuation of
the sentiment "get lost" is universally obvious.

But depending on the situation, you might be able to get away with something
like:

> ご心配なさらないでください。 (Please do not worry about me.)

Or:

> ほっといてください。 (Leave me be.)

Being the Canadian-raised cynic with juvenile tendencies that I am, I'd
probably say:

> だったら何だっての？ (So what?)

Which in cleanest clothes might be:

> だとしたらどうだというんですか？

