I got the same donation from a non ebiker. When he found me he pulled me out of the creek, called for help, and fixed his tire tube as a sling for my arm/shoulder/clavicle. I’ve seen him several times since then and offer to return the tube. I guess it’s mine now but it’s for a 27.5”. His name is Russ.I mostly get the same vibe. It was a non ebiker who donated his tube on a ride that got me home after shredded my tyre.
I try to say “hello” and or “thank you” to everyone I meet or pass. Sometimes I’m ignored …but I don’t care. The dog-walkers seem to be a friendly group and are aware of others using our trails and roads. At least the dogs didn’t judge me…or try to bite me anymore.