My chain is so loose that it came off within the last few miles of a journey. I managed to get it back on (I know, it's that loose) and make it to my destination, but I'm now stranded with a chain that could come off at any moment and a 50 mile journey home. The swing arm shows that I'm on the last adjustable notch. I know it's basic basic maintenance to keep an eye on the chain but I'm stuck now. I have the tools to adjust the chain, but is it possible to adjust it further than the last notch, and if so is that safe for a 50 mile ride? I really just need to get this bike and myself home asap. Any advice? Condescend away I know I deserve it