An advisory released by the FDA on Monday encourages makers of hand sanitizer to add denatured alcohol, which tastes bitter, to their products in order to make children (and some adults, one supposes) less likely to ingest them. The FDA noted a case they saw this month, in which a 13-year-old drank hand sanitizer that was made by a distillery and packaged in a liquor bottle. The sanitizer was not denatured, the agency said, and tasted like regular drinking alcohol — not how you’d want it to taste if you want to keep consumers safe.