Close coyote hunting

[foster]

I'd also love to hear you people's opinions on baits.
For example, I have a rabbit pelt that wasn't killed too long ago and which I purposely left on some meat, even a bit of innards, with the idea of using it as a coyote bait in concert with a rabbit-in-distress call.
I've heard some people say it's useless -- or worse -- to do that, while some others seem to swear by it. Some have told me it's UNETHICAL!
What say you?
Many thanks in advance.
Edited to add that I use a mouth call, in case that makes a difference.