Some chap on the radio says Hennessy & Coke is the new new thing in Irish bars. Yeuch. Hennessy is good. Coca-Cola is good. I can only imagine how horrid the two mixed together would be. Mix Coke with any alcohol and it goes flat and syrupy. Likewise most fizzy drinks. Call me old-fashioned but the only soft drinks I like to mix with booze are tonic and soda. Although not at the same time.
Hennessy was founded by an Irish mercenary in France who would send booze home to his family. Fair play to him, he embodied at least three hoary Irish clichés all at once.