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.
Don't Just Rely On Your Nose. Although PG&E adds a distinctive odor to natural gas as a safety precaution to assist in the detection of leaks, you should not rely solely on your sense of smell to determine if natural gas is present. There are a number of reasons why your sense of smell alone is not enough to alert you to the presence of natural gas.