Drill a hole in the wall? The drill bit broke. Shorten a wooden table top? The saw got stuck and the table snapped. Screw together a bed? Not enough bolts and the wrong size spanner for the nuts. Assembly a baby bouncer? The plastic leg broke. Drag a table across the room? The glass top suddenly slid off and shattered, cutting open my foot. You get the idea. Give me a computer or a blackboard any day!