We don't have real absinthe in North America unfortunately; the hallucinogenic compound is removed. The one you had sounds quite potent. It seems like the waiters had experience with passed out customers. Might be the perfect drink after a hard day of thankless cubicle dwelling and toiling and you need to forget who you are. Not something I'd drink regularly but I should try it at least once. Found an online retailer! From the reviews: "Does the projectile vomiting scene in The Exorcist give you the warm fuzzies? Do you want to spend hours of your evening hallucinating that a purse is a very small, judgmental dog? Do you want to damage your romantic relationships with a string of texts that sound like they were written by Van Gogh's missing ear?".