I Ordered a Glass of Water..... Not Lemon Water

I don't understand why restaurants insist on putting lemon wedges in my water without me asking. Shouldn't they only put the lemon in my water if I ask. Since when did water just come with lemon in it? Sure, I could fish out the piece of lemon, but by that point the water has been tainted. Not to mention the fact that lemon wedges have a high level of bacteria from being prepared by workers not wearing gloves. Now, if you want to throw a lemon wedge in my Bacardi Limon and Seven go ahead. In that case the alcohol is hopefully killing off all the bacteria. Cheers!