"When they all but say 'all you're good for is sitting there and watching the pretty blinking lights, and make sure that none of them go out, if they do then hit this shiny button here and tell someone, don't go looking for why', then yes, they are." She gritted her teeth at them. "Just like when they say 'You can't do something you've done almost all your life, save for maybe with a foam rubber sword rather than wood one'." She gave him scowl for scowl. "Something tells me you're quite good at telling someone they're useless."