Lex points to a video on Youtube that basically says that the lemons in your drink at a restaurant are probably contaminated with all kinds of nasty bacteria.  "Fecal" is part of the description which means that I’m pretty much done with the lemon thing for the next couple of weeks.  FYI, my memory sucks so I’ll forget all about this in a couple of weeks, thus no claim from me that I’ll "never have lemons in my drink again."