"The Lone Ranger and Tonto walked into a bar" joke

The Lone Ranger and Tonto walked into a bar one day and sat down to drink a beer.
After a few minutes, a big tall cowboy walked in and said,
"Who owns the big white horse outside?"
The Lone Ranger stood up, hitched his gunbelt, and said, "I do. Why?"
The cowboy looked at the Lone Ranger and said, "I just thought you would like to know that your horse is just about dead outside!"
The Lone Ranger and Tonto rushed outside and, sure enough, Silver was about dead from heat exhaustion. The Lone Ranger got him some water and soon Silver was starting to feel a little better.
The Lone Ranger turned to Tonto and said, "Tonto, I want you to run around Silver and see if you can create enough of a breeze to make him start to feel better."
Tonto said, "Sure Kemosabe", and took off running circles around Silver. Not able to do anything else but wait, the Lone Ranger returned to the bar to finish his drink.
A few minutes later, another cowboy struts into the bar and announces,
"Who owns that big white horse outside?"
The Lone Ranger stands again and claims, "I do. What is wrong with him this time?"
The cowboy says to him, "Nothing much, I just wanted you to know -
you left your Injun running..."