I've known this about all my life and been told it was bullshit. This study confirms that I have been correct all along!!!!!!!!!!!!!

Source: Associated Press

Studies show dogs have sense of fairness

By RANDOLPH E. SCHMID, AP Science Writer – Mon Dec 8, 11:17 am ET

WASHINGTON – No fair! What parent hasn't heard that from a child who thinks another youngster got more of something. Well, it turns out dogs can react the same way.
Ask them to do a trick and they'll give it a try. For a reward, sausage say, they'll happily keep at it.

But if one dog gets no reward, and then sees another get sausage for doing the same trick, just try to get the first one to do it again.
Indeed, he may even turn away and refuse to look at you.

Dogs, like people and monkeys, seem to have a sense of fairness.

"Animals react to inequity," said Friederike Range of the University of Vienna, Austria, who lead a team of researchers testing animals at the school's Clever Dog Lab. "To avoid stress, we should try to avoid treating them differently." Similar responses have been seen in monkeys................

More: http://news.yahoo.com/s/ap/20081208/...sc/sci_no_fair

The only one in my house that can be more of a bitch than my wife when she feels that she's been or being mistreated is my lil' Chin, Sandi Sue!!!!!!!!!!!!