After twenty years of flying on a UK licence, I finally took my ATP. I'd lived in the US for chunks of my life but still found ATC a very real problem. It struck me they were vying for a Joe Cool award - with extra points for quantity.
Uplinker.
. . . Some US controllers talk as if their hair is on fire . . . and I never really know if this is because they are stressed or are trying to impress someone . . .