I've had a caliper loose a bolt on me on one of my old bmw's....thought I was toast turned out to be something simple hay could have been very dangerous and avoidable. I'm not in the habit of using locktite but the bolts usually already have some on there so I just lock them down as tight as I can get them..

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FOR SALE:
Chrome yellow 01 ranger edge 4x4 ext cab 187k miles runs strong, manual, cruise control, tilt, great ac and heat, radio and shifter bezels painted to match, piss on obama sticker on the back window!
Single to dual exhaust-150+ ship chrome exhaust tips from mustang gt-50+ ship custom buggman modded 4x4 3 switch bezel-120+ ship