I went to a walk-in dentist yesterday to address my toothache - I had a major abscess a while back due to a botched root canal and I do NOT wanna risk dealing with that again. - and I wasted $100 and three hours for them to tell me I need this and that done, I need an implant for my missing tooth (which doesn't impede eating and is far enough back that you can't even freakin' see it), I need caps on all of my teeth, and, oh yeah, they've got no idea what's wrong with the one tooth I came in for in the first place, tough luck.
Now they won't stop emailing me. They want me to rate my experience, they want me to set up future appointments, they want me to register a payment method - bitches, I HAVE a dentist, but he was closed yesterday! And it takes forever to get an appointment but he at least doesn't push unnecessary dental work on me because he knows I'm a broke-ass college student who's been run through the wringer by previous dentists and he prioritizes stuff I actually need and works to make sure I pay as little as possible for it! Screw off already!
So, yeah, take care of your teeth, or you'll end up being harassed by the fifth dentist you've visited in six years, and that's never a fun place to be.