Some points to remember [about animals]:
    (1) Don't go to sleep under big animals, e.g., elephants, rhinoceri,
    hippopotamuses;
    (2) Don't put animals with sharp teeth or poisonous fangs down the
    front of your clothes;
    (3) Don't pat certain animals, e.g., crocodiles and scorpions or dogs
    you have just kicked.
    -- Mike Harding, "The Armchair Anarchist's Almanac"