I grew up on a farm. I had to clean barns and chicken coops. I'd be smeared in shit and I wasn't even getting paid for that. I was earning the roof over my head. Dog shit is the worst one. Horse shit can be rather pleasant, somehow, compared to the others. I know that sounds weird, but it's not. Those llamas can be jerks. They have attitude problems. My dad has a few now along with an alpaca as well. I named the alpaca ET because it looks like ET from the front when she's standing there staring at me. I grew up surrounded by all the animals you mentioned there along with quite a few more. What you said doesn't sound weird to me at all.
I'm not sure if I'll ever run out of ideas, but if I do I'll most certainly use that line and have fun with it.