A notable experiment involving a weasel and a rat.
Weasels are fierce creatures, crafty and capable of
killing animals a good deal larger than themselves. The gentleman conducting the experiment took a weasel and had its
teeth removed. The weasel is essentially harmless without its teeth.
He then put the weasel into a
barrel with a
rat. The terrified rat, not knowing that
the weasel was unarmed, cowered in the corner, and died of a
heart attack.
From this we learn about courage: we should not be like the rat. Have the
Will.