"Baby" son (23, 6'6") wanted to borrow the car to go bouldering after class. So he biked up to my campus, stopping off at home to pick up a pair of shoes for me and planning to drop my bike off at the LBS on his way to the cliffs of H*ll. But hearing what had happened he thought it sounded familiar. It'd happened to him before. Loose gear wire. He tightened it, straightened out the chain, rode my bike around the parking lot shifting up and down a bit. Took him just a few minutes, then he called me on my cell phone and asked where I wanted him to park the repaired bike. Now I'm off to ride her home.