Insurance is for crap

So I had a toothache, and I figured I ought to go to the dentist. Before going, I go real quick and sign up for some extra plan on my student health insurance because it promised that it was very likely that it would cover "up to" 50% on dental work. It cost like $25, I think. So, I wind up going to the dental school because it will be cheaper anyway, and they pull two of my teeth out after taking some x-rays, and charge me some money, and I wait to see if the insurance will cover anything. A while ago a very nice lady at the dental school calls me to basically tell me that the insurance won't cover anything. I have to pay for all my tooth-pulling, which is fine with me, but I paid $25 for nothing. I sure am an idiot.