Here we go again. I read the OP question about 3 times, and never did I see he/she ask the question if you thought it was ethical to give Everclear or not. That's for them to decide in their circumstance. Not yours.
Now, from my experience. I mixed 75 cc of everclear with 1/2 gallon of cherry Kool Aid, and gave it through a drench gun for a fat steer. My 8 year old son was showing him. He wasn't bombed, just had a buzz, and it made him a little more hyper. I believe if I have to calm one down again, I will use melatonin from the drug store, and mix it in with the feed the day before and the day of the show.