I've never really had anything against birds (HAD being the keyword), but apparently some birds like bagpipers as much as Star Wars fans like Jar Jar Binks.
It started off a completely normal gig: a grieving family huddled together, stone faced men in uniform saluting respectfully, a piper dressed in black standing at attention under a nearby tree, and a bird chirping casually above.
As the service came to a close I got the signal to begin playing Amazing Grace. I struck up the pipes and played the first note, a fairly loud event, which apparently scared the sh** out of the bird (literally) who then unleashed it's hefty payload onto my shoulder. It may have been the first time I saw a military man nearly burst out laughing and struggle to suppress a smile. As I was already mid-tune my options were fairly limited, so I chose to glance over, take note of the damage, and continue playing as if this was completely normal and unsurprising.
I really can't complain though as it COULD have been much worse. It COULD have gone down my bass drone like a torpedo shooting down a tube into the heart of the Death Star, or worse- it COULD have gone in my mouth...