Two race horses are standing at the bar talking.
One says to the other "how ya doin?"...the other replies, "Ahhh....pretty good...the other day I was in a race and at the last minute I get this surge of energy and don't ya know... I won the race by one length. How are you doing"?
"Not too bad really, I was in a race yesterday also and just like you at the last minute I get this surge of energy and don't ya know...I won the race by one length".
This greyhound walks up to the two horses and says, "'Scuse me but I couldn't help but overhear you guys. Just today I was in a race and at the last minute I got a big surge of energy and I won by one length".
One horse looks at the other and says, ...."WELL FUCK ME, A TALKIN' DOG!!!"