Fukuda also is just taking in the sights, and he just happens to cross paths with Ritsuka while she's ogling a G*ndam model or whatever mecha it might be. He observes it silently a moment, before idly commenting,

"You know, I knew a guy once who was working on a life size fully articulated model of one like this in his backyard," he pauses a moment, putting a hand to his lips as if musing something over, "or well, human size. I guess life size scale for a mecha would be irresponsibly large to try and make at home."