If anyone ever asked Kathy what her favorite personality trait of Barry's was, she was totally going to deadpan 'humility.'

"...Which you just have lying around," Kathy sighed. "I assume from your other scientific inventions and patents, of which there are ridiculous numbers?" Call it a hunch. "Just tell me that you don't want to take over the world, if for no other reason than because ruling humanity would cut into your science time?"