Charge nae mair shot than the piece 'll bear.
Charity begins at hame, but shouldna end there.
Cheatery game will aye kythe.
"Kythe," to appear. That is, cheatery or evil-doing will almost invariably come to light. A qualified version of the English saying, "Murder will out."
Choose your wife on Saturday, not on Sunday.
This saying suggests that a wife should rather be chosen for her good qualities and usefulness, which are seen in her daily labours, than for her fine dress or her Sunday manners.
Claw for claw, as Conan said to the deil.
"In the Irish ballads relating to Fion (the Fingal of MacPherson), there occurs, as in the primitive poetry of most nations, a cycle of heroes, each of whom has some distinguishing attribute; upon these qualities, and the adventures of those possessing them, many proverbs are formed, which are still current in the Highlands. Among other characters, Conan is distinguished as in some respects a kind of Thersites, but brave and daring even to rashness. He had made a vow that he would never take a blow without returning it; and having, like other heroes of antiquity, descended to the infernal regions, he received a cuff from the archfiend who presided there, which he instantly returned: hence the proverb."—Sir Walter Scott, Note to Waverley.
Claw me and I'll claw thee.