A little drastic, but if it works, it works.
The fear of someone scratching their car always works better than explaining why safety needs to exist for other people to live or even survive.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.