Dinna touch him on the sair heel.
Do not speak to him on a subject on which he is known to be sensitive.
Dirt bodes luck.
Dirt defies the king.
Dirt parts gude company.
Dit your mouth wi' your meat.
"Dit," close. A suggestion intended to put a stop to idle conversation.
Do a man a good turn, and he'll never forgie you.
"'Are you mad?' cried Bryce Snailsfoot, 'you that lived sae lang in Zetland to risk the saving of a drowning man? Wot ye not, if you bring him to life again, he will be sure to do you some capital injury?'"—The Pirate.