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			when I was a kid I thought caves were cool, and I remember visiting a lava cave and squirming through tight spots and stuff and loving it.  Now caves freak me out.  I'll go through a touristy one with sidewalks in it, but the idea of squeezing through a tight gap hundreds of feet underground just gives me the heebs.  Throw water into the mix and NO WAY.  I bet statistically speaking, it's safer to jump out of a perfectly functional plane, which is another thing I'm not doing.
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