My first bike shop job in Austin showed me how many parts seize without grease. This isn't just about bikes, it's a basic rule for anything with threads or moving parts. I watch neighbors fight with stuck lawnmower wheels every spring, all from rust. A drop of grease or oil is cheap insurance against that kind of hassle. It's smart to learn this early and use it on all sorts of stuff around the house.

My friend had that happen once. It looked angry but was totally fine by the next morning.