...which may not seem bad but trust me, it'll drive him nuts.
I'm a big fan of family holidays and am usually quite festive with them. Which differs slightly from niveK's philosophy. He's not in favor of Father's Day, or Mother's Day really, as he doesn't see why he should treat them better on one particular day as opposed to all the others. Granted, he treats his parents better than almost anybody I can think of so I suppose if he did put in an effort on their respective special days...he'd keel over dead.
How're you planning on spending Father's Day?