One time I hit a gosling who decided to cross at the wrong time. His neck got caught up in the run of chain that was passing over the cassette. In the moment, I thought it was going to take his head right off. You've seen pictures where someone gets their finger caught in a fixed gear drivetrain? That kind of thing.
But no, his body was lifted up, tossed around. When his neck came out the other side, he flap/crawled away. Bunch of black chain grime on his yellow feathers. Honestly, it probably died just after.
The girls on the ride went, "Ohhhhhh, that poor thing." The guys thought it was awesome.
The next day I cleaned the downy feathers off my chain. Kind of forgot about it. When I took my cassette off the next time, there was a surprising amount jammed back there.
