Scot

It is true that there are some people even so utterly without imagination that they cannot take a joke; such as that grave man of Scotland who was at last plainly told by a funny friend quite out of patience, “Why, you wouldn’t take a joke if it were fired at you out of a cannon!” “Sir,” replied the Scot, with sound reasoning and grave thought, “Sir, you are absurd. You cannot fire a joke out of a cannon!”

Tom will get off scot free.

Tom is likely to get off scot free.

Stefan stole Isabella's phone, laptop, and valuables and got away with it scot free.

Glorious London! Leviathan of human greed; palpitating hot-bed of iniquity and joy; Greek, Roman, Spanish, Saxon, Kelt, Scot, Pict, Norman and Dane have swept over thee like winter storms; and the mighty Cæsar, Julius of old, with a myriad of bucklered warriors and one hundred galleons of sailors, triple-oared mariners, defying wave and fate, have ploughed the placid face of Father Thames, startling the loud cry of hawk and bittern as his royal prows grated on thy strand, or skimmed over the marshes of thy infancy.

Mary married a Scot.

The black fellows were in a very savage mood. […] Mr. Lawson, having heard that the up-creek blacks were "in a scot," and fearing that the youngsters might fall into their hands, had then started with his little party in pursuit.