Some dads are tech geniuses. Some dads are master mechanics. And some dads are so technological unevolved that they might as well stick to cave paintings. If your dad's idea of InDesign requires a burnt stick and a cave wall or his camera needs gunpowder for flash, then these funny Father's Day cards are the perfect gift for him. Not every dad will be great at everything. Besides, let the nerdy dads be the techies. All your dad needs is a fishing pole and a beer.