Horses

After class I kept thinking about horses, and particularly about the "bit," that metal bar that goes in a horse's mouth, behind its teeth, attached to the bridle lines.  That seems obviously uncomfortable at best, very painful if tugged.  That was just my theory.   Research (Google) revealed that there's a whole movement in the direction of "bitless" bridles.  I think that this must be the result of making decisions which take non-humans into account.  Alternatives are around, if we look for them.  Here's an example:  HERE.