In the spirit of what the thread is kind of devolving into, I offer these gems.
First up a custom saddle covering that someone didn’t think all the way through. Maybe they had a thing for cactus…or just pain.
We get examples of Drillium all the time.
Maybe you should ride the bikes more often than every 15 years. That was the number of tree rings on the limb.
The handle bar is the wrong size. No problem! I got a TIG welder!
Should have used narrower tires or oriented the brake pad spacers differently.
Maybe they should have cut back on the oil.
I think they just opened a can of oil and poured it on. It was everywhere even on the shift levers and v-brakes.
Someone thought emery cloth would make a great tire liner. At least we now have lots of sand paper for fixing flats
Maybe a bit more air in the tires would have been warranted. At least they didn’t get any pinch flats! Ruined a wheel with an Industry 9 hub but they didn’t get any pinch flats!
I have endless others that I don’t have pictures for. A recent one was someone who really did come in with disc brakes that weren’t working because he had squeaking brakes and cured it by…wait for it…by oiling the discs.
A long time ago, someone came in with a nice Specialized Epic dual suspension. He had removed the chain…by cutting through the seat stay. He wanted to know how he could join the seatstay back together. I sent him away without a solution.
We had a bike come in with a “bandage” on the top tube. It appeared to be epoxied in place and one of the volunteers eventually cut it off only to expose a about a 1” gap in the top tube.