You may have heard warnings a million times, you may have imagined danger in a thousand details, but just try to recall a saying someone asked you to remember in the face of instant danger, (will you be able to?) just before getting struck by lightening or bit by a snake...
Squat and go up on Your Toes!
Red on Black Okay Jack, Red on Yellow Kills a Fellow!
And I know, it will take a few moments to pull up the mental index card of the crash position, when I'll only have a jiffy to assume the posture.
It is forbidden to enter the public garden carrying flowers.- Jean Paulhan Les Fleurs de Taebes
Often, the less there is to justify a traditional custom, the harder it is to get rid of. -Mark Twain
Carving is easy, you just go down to the skin and stop.
-Mickey di Lodovico Buonarroti Simoni
...And then work through remembering the Court Jester mnemonic rhyme to which chalice holds the 'brew that is true'.