BEWARE OF DOG

I've heard this about circus elephants, don't know if it's true or not, but here it is

When the elephant is little, it is tied down with a chain to a massive post
It will try to get out, pull the post down, break the chain but to no avail, until it accepts it's fate and stops fighting it
From that point on, the chain can be attached to anything, even little pegs a child could pull over, but the elephant will never know it because it has been conditioned (trained) to feel resistance to the chain is futile