The standard tipping paradigm doesn't bother me so much when it's service to the table. It is in many ways a stupid system that yields better service in the aggregate. I've waited tables and in general servers actively try to please the customer and usually do a great job with their poker face when it comes to small checks. But I know what it's like to instantly view customers as pay-grades...our brains can't turn off that association. As a one-top who used to wait I definitely add margin to my low checks. What bothers me is the proliferation of tip jars that are showing up everywhere were no services are being provided. I mean, it's not a huge deal and and as a guy that doesn't use a man bag I often welcome the opportunity to dump a fistful of coin change in a receptacle other than my front pocket, but still....I'm basically tipping you for putting my money in the register?