This is probably old, but it's the first time I've seen it and I found it pretty funny.

Why  Auburn & Alabama don't get  along




4 football  fans go rock climbing.  An Alabama Fan, an Auburn  Fan, a
Tennessee Fan and a Georgia Fan 

They had been arguing  about who was the most die hard fanThen the Tennessee
 fan proclaims "This is for the Volunteers!!" and  jumped off the mountain as
a sacrifice screaming  "rocky top" as he fell to his death. 

Then the Georgia fan  jumped up and shouted "This is for the Dawgs!!" and 
jumped to his death barking and ringing his cow  bell.

The Alabama fan rose to  his feet and yelled "This is for the Crimson Tide"
and  without hesitation pushed the Auburn Fan off the  mountain shouting "Fly
War Eagle Fly!!"