I once tried a cocktail based on chartreuse and it was definitely something. Can't say I would recommend anything based on chartreuse to anyone. It's a really, really peculiar taste, though if you are adventurous then by all means!
A bartender once told me the next shot was free but I’d almost certainly throw up. That was my first time drinking Captain Morgan. I did the same thing to a guy in a bar and he didn’t make it to the bathroom. The power of suggestion is pretty wild since it tastes fine, a nice enough spirit.