Here is some interesting TACO TRIVIA - ( I still quote the chihuahua)
The Taco Bell Chihuahua was a failure. One of Taco Bell's most famous advertising campaigns ever... quite possibly their single most famous one... was the Taco Bell Chihuahua. He'd say "Yo quiero Taco Bell" and people loved him.
Well... they loved him enough to quote him... but NOT enough to actually go to Taco Bell. During the Chihuahua era, 1997 to 2000, Taco Bell sales slipped.
Finally, in 2000, Taco Bell decided they needed to send the Chihuahua to doggy heaven (as opposed to doggy hell, where you find Hitler's dog, Nixon's dog and one of the Lassies)... and go back to marketing to the one demographic that keeps the chain alive: Young, kinda stupid men.