He that passeth by, and meddleth with strife belonging not to him, is like one that taketh a dog by the ears (Proverbs 26:17)
Says the old proverb, “Shoemaker, stick to thy last.” Trite, yes. But very true for us of AA. How well we need to heed the principle that it is better to do one thing supremely well than many things badly. (Language of the Heart)
A very good way to not meddle with that which is not my business is to stop thinking about it. But the thing I'm trying not to think about can become a poisonous secret and a constant temptation. If one must think of a person, a category of person, or a situation, one can always pray about them or it. A very good way is to identify everything that irks one and pray for the opposite, with the word 'we', in the style of the St Francis prayer, e.g. 'Where there is folly, may we bring truth; where there is enmity, may we bring unity; etc.' This has the benefit of both neutralising the mental toxicity with which I have daubed the person, category of person, or situation and secondly practising higher virtues. These then bear subsequent fruit. The last that we, the shoemaker, are to stick to, I believe is constant prayer.