The look my pet rat gets when I let him lick my fingers after I've eaten something like a cheeseburger or a piece of fried chicken. Nutritionally it's not much better for him than it is for me, but rats only live 2-3 years so I spoil 'em while I've got 'em.
The announcer saying "Congratulations, [my team], you are national champions/have won the World Series/Super Bowl/NBA Finals/Stanley Cup" in any sports game.