I know this is going to sound a bit harsh, but there are some people that can't do the Will Pay math in their heads even if you teach them they can figure out out the "approximate" odds that way. They may not be big bettors, but they get just as pissed off when the odds change late. And of course, not everyone is playing a major track where the pools are large and efficient enough to be used like that.
Try betting mule races at Fresno, Sacramento, Pleasanton, Ferndale, and Santa Rosa or a mule/quarter horse double like me during the CA Fairs I love.
