I eat out with a couple of different dinner groups, at least twice a month. I've noticed that several of the places I've been to recently have taken to adding a service charge to the bill -- and not advising you in any manner that this will take place.
I prefer to tip (if/when I do) by merit. Only once have I challenged this charge, where it most certainly was not merited, and the response I got from the waitress was so unbelievably rude that once the "tip" was erased from the bill, she didn't get anything at all from me.
I do take the time to inform the organizers, who seem happy to know that this is being done, but shrug it off and pay it anyways.
I don't want to get into a debate of "to tip or not to tip" -- but when these service charges start popping up, can they be refused? I am uncomfortable being forced to tip.