mom used an illustration during sunday school class once. years ago, a brother from church visited us. he saw a ceramic unicorn on my mom's coffee table, which was a gift from someone. he went to tell her that this mythical creature wasn't of God, etc etc etc. mom said, "well brother, i just think it's pretty. i know the unicorn doesn't exist. but if it bothers you too much and is a stumbling block, i can chop off the horn, and so it will be just a regular horse." he said it wasn't necessary lol