Following are a number of back-translations as well as a sample translation for translators of Proverbs 10:26:

• Kupsabiny: “Laziness of a person who drags his feet pains the one who sends him
  like how smoke disturbs the eyes, or like when bitter fruits are eaten.” (Source: Kupsabiny Back Translation)
• Newari: “Getting lazy people to work is like
  vinegar to the teeth
  and smoke to the eyes.” (Source: Newari Back Translation)
• Hiligaynon: “As vinegar can-cause- the teeth -to-set-on-edge and smoke can-cause- the eyes -to-become-bitter, the lazy man can-cause-vexation to the one who commands him.” (Source: Hiligaynon Back Translation)
• Kankanaey: “The lazy-one in the viewpoint of his master can-be-compared to vinegar that tastes-sour/tart and smoke that is-sour/bitter to the eyes.” (Source: Kankanaey Back Translation)
• Shilluk: “Sending a lazy person is bad like chewing boiled sorghum that has small stones in it,
  it is like smoke in the eyes of the person who sent him.” (Vinegar is not known in the culture so a substitute had to be found. “Small stones may get into the sorghum flour during the harvesting process. Biting on a stone while eating the porridge is a very painful experience.” — Source: Cynthia Miller in The Bible Translator 2005, p. 129ff. )
• English: “We do not like a lazy person who refuses to do the job that he is given to do,
  just like we do not like vinegar in our mouths or smoke in our eyes.” (Source: Translation for Translators)