The great country singer George Jones was famed not just for his voice, but also for his drinking. Once, deprived of the car keys, he drove his lawnmower to the nearest bar. In the very good Paramount+ drama about Jones and Tammy Wynette – entitled George and Tammy, so there’s no excuse for forgetting – Michael Shannon, playing Jones, is asked time and time again why he keeps on making such a mess of his life and his career.