A blonde walks into a bar looking frustrated

The bartender asks her, "What's the matter?"

The blonde replies, "Well I've got these two horses and I can't tell them apart. I don't know if I'm mixing up riding times or even feeding them the right foods."

The bartender suggests, "Why don't you try shaving the tail of one of the horses?"

The blonde says, "That sounds like a good idea, I think I'll try it."

A few months later, she returns to the bar in worse condition. "I shaved the tail of one of the horses, but it grew back and I can't tell them apart again!"

The bartender says, "Why don't you try shaving the mane?"

A few months later the blonde is back. "I shaved the mane of one of the horses, but it grew back!"

The bartender yells, "Just measure the damn horses. Perhaps one is slightly taller that the other one!" She storms out of the bar.

The next day, the blonde runs into the bar. "It worked, it worked!" she exclaims. "I measured the horses, and the black one is two inches taller than the white one!"