Well, if it did work, that is how it would work, but it doesn't. But I agree, anybody that would do that is sick. All of the wive's tale remedies for coyotes are painfully ineffective and more likely to harm someones pet dog than anything else. I could list more of the gems of the internet, but I'm not going to. Coyotes are easy to catch. Once you have trapped 15 or 20 years it's like child's play. Don't waste time and money on stupid stuff like sponges soaked in bacon grease, either gain the experience needed or call someone who has the experience needed. If your sink leaks do you pour butter down the drain? Or do you fix it yourself, or lacking the knowledge, call a plumber? Animal control is very much a trade and profession, but it's cheaper for most folks to just gripe about coyotes while feeding them chickens and put out some silly thing that has more chance of killing the neighbors dog than even having a coyote cock his leg on it. Coyote coughs up and poops out much worse things than a sponge, but dogs are bred with all kinds of gut deficiencies.