After Shabbos, Rabbi Yehoshua Leib Diskin used to lecture on the weekly portion. A certain person used to bring him tea to drink during the lectures. Once, the person made a mistake and instead of adding sugar, he put in salt. The person always used to put in a large amount of sugar, so this time Rabbi Diskin’s tea contained a large amount of salt.
Rabbi Diskin drank the salty tea as if there were nothing unusual about the taste. A few minutes later, his wife discovered the error, and came running into take away the cup which was almost empty. Afterward, a few students tried to taste the tea and were amazed that their teacher had drunk such salty tea. After most of the students left the house, Rabbi Diskin’s wife asked him why he didn’t say anything. The excess salt could have a bad effect on his health.
“How could I embarrass someone just because he made an error?” was Rav Yehoshua Leib’s reply. ~ Amud Aish as quoted by R’ Zelig Pliskin