Board Thread:General Discussion/@comment-9219983-20131108055117/@comment-16774229-20131213225529

Maybe she wasn't combat ready right then? I imagine that people don't have their Aura running one child mode 24/7, so if they're not ready when it happens, they can be knocked over easily. And Penny's design was made to mic this, giving her the abliety to turn what ever she has instead of Aura on and off.