Too much and they're no fun at all, but if you get it just right, lemon juice could be considered manna from the heavens. I love how bitter it can be. Imagine some super old lady biting into a lemon, or anyone for that matter. The faces they make are priceless. Even now, baby's all over the internet are being held captive by parents who find it ammusing to coerce these innocents into biting into something that looks inviting, but when impropperly approached, causes face-making that I can only compare to that of Sloth from the Goonies.