Treacherous \Treacher*ous\, a. [See Treacher.] Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless. [1913 Webster] Loyal father of a treacherous son.
Fuel Safety Tips. 1  If you need to transport fuels such as propane, gasoline or oil, it should only be carried in approved containers certified by agencies such as the Canadian Standards Association or Underwritersâ Laboratories of Canada. 2  Containers should never be filled right to the top.
When it comes to gas appliances, safety is a top priority. If you smell gas in your home, follow these steps: 1  NO FLAMES OR SPARKS. 2  Immediately put out all smoking materials and other open flames. 3  Do not operate lights, appliances, telephones, or cell phones.