What if I'm proud of not tipping?
Why are you proud of  not tipping?
I hate it when they are just doing their job and they expect to get a tip.
Even if the service is not as good as you would have liked it, you should still give a tip. It is wrong not to tip when someone provides a service to you.  Plus you should not be proud of not tipping.
I'm proud and I don't care.
It's wrong to not tip for the service that you receive. These workers get paid less by their employer because they are expected to receive tips.