Ant: Yeah, well if wishes were horses, beggars would ride.
Sister: That is stupid. Why would a beggar ride a horse. If I was a beggar and I had a horse, I would eat the horse. What good would riding a fancy horse do you.
Ant: I suppose it would be kind of counter-productive to being a beggar. People would look at you on your fancy horse and think that you didn't need the money.
Sister: Exactly. The saying should be 'If wishes were horses, beggars would eat horse.'
Nephew: The beggar could start a horse riding business.
Sister: That wouldn't work. The saying isn't 'if wishes were horses, beggars would start a horse riding business'. And where would the beggar stable their horse and stuff. That's just stupid. They really didn't think that through.
from ant_power here.