The upper caliper bolt fell out of Oscar the other week when I was at Chris's place to check his weather station, my fault as I'd failed to torque it properly, this created a really weird problem as the caliper rotated and wedged cam like against the inside of the wheel rim, you can see the contact point at the lower right of this photo. Anyway Chris was a hero to me and even drove me up the road to get a bolt that fits, which got me out of trouble until the fancy proper one arrived.
I was really rattled for a while having a car that wouldn't drive forward yet could be reversed. Another case to put into your memory bank.
