there are some things someone could do that is dangerous or hurtful to them or someone else. I would hope they did not do that mistake again. other things like being disappointed or not doing as well as you thought or was embarassed and say never again, I would say give a try again. depends on circumstances. a bad dangerous foolish NO! not doing as well the first time than learn and try again. I would hate to see all those inventors, scientists, and others say that we would be without a lot today.