Cumberland gave a taste of what he was capable of at Carlisle.
The garrison had been captured by Jacobites on their march south, but they were unable to hold out against Cumberland's advance. Into this tiny space were crammed hundreds of Jacobite soldiers, locked up without any air or any water. What they did have were these shiny stones. Smooth, damp, slimy a terrible memento of their distress. To this day, they're called "Licking stones" because the prisoners were brought to such horrible extremities that they were forced and reduced to sliding their tongues in these cavities to try and collect the pathetic amount of moisture gathered on the rock. This really was Hanoverian Britain's Black Hole of Calcutta.