Mulching My Nerves?

So I goes into the dentistry office today for a quick drill-n-fill of what was supposed to be an occlusion (small cavity) in good ol tooth numed 15 (top left molar) - but doc gets in there with his little tiny drill spot and goes 'uh oh'.... I'm like - 'ummmm uh oh?' so he was all 'looks a bit bigger under the little cavity opening' so I'm all 'ok no prob bro just do your do, I can handle a bigger cavity, after all I gots fillings for days' so he pops out the dremel and a bigger bit and goes to town on my tooth. This ain't no high pitched lil drillin this sounds like one of them drill they go thru mountains with - "garbel grumble graggle" goes my tooth - he's coring it out like a damned woodshop project. After a few extra doses of the feel good - he goes 'awe dammit' and he looks concerned. 'Thats not a good thing' I says to myself. He flips off the cnbc and says 'wow, I really got sand-bagged here - none of this shows on the xray...' so I says to the dental doc 'what seems to be the problem officer' and he says I'll show you. Whips out the 'orifice camera' and shows me my tooth - or wuts left of it. There is a hole the size of a chicklet straight thru to the nerve (maybe a tictac)... he says the the tooth was decayed, right thru to the nerve and he's gonna need to give me the old root canal.He proceeds to show me some nasty diagrams in which the tooth is cored out (done) and then, now heres the good part - they take some kinda drill or file or some other instrument of torture and mulch the nerve up until its out. ug. see the pic if you can stomach it. Then they fill that space where the nerve was with some kinda super-plastic - then - oh its not over - then they chip away the outer layer of the rest of my tooth and crown it up. Hopin for gold, or platinum, with some bling in it. So thats my next Thursday. wheee. damned dirty xrays. hornswoggled.