They don’t….if you don’t
mind sticking your arm in there up to the elbow. A horse actually has a “sheath
within a sheath”. With a little practice, you can scratch them gently
right in front of the sheath…..this will usually get them to drop.
Grab his tool with one hand then pop the bean out with the other before he
knows what has happened. J
Here’s a pretty good (and humorous)
description of how to clean a sheath.
