CATFIGHT: The Exxon oil company and its forebears have been using their "Whimsical Tiger" mascot in advertising since 1959. Kellogg's has been using the "Tony the Tiger" mascot to sell corn flakes since 1952. Now, Kellogg is suing Exxon for trademark infringement. "The Kellogg's tiger and Exxon tiger have peacefully co-existed for 30 years now," says Exxon's chief marketing executive. "Their suit makes no sense." Yes it does, counters Kellogg. Exxon is now selling branded food items in its gas stations, and "we are not going to allow Exxon to misuse this valuable Kellogg equity and confuse consumers," said a Kellogg spokesman. Exxon says customers are intelligent enough to keep the companies separate. "No one has come into our stores asking for Kellogg's gasoline. And I've not seen any evidence that anyone has gone into a grocery store looking for Exxon cereal." (AP) ...After reading the lawsuit, the judge was heard to mutter, "Oh, Grrrrrrrrrrrreat!"