It just...seems a little unhygienic. That's all. I get what you're saying about why we have to, and it makes sense, it just...

[Who knows what other person (or weird alien) has had their feet in those shoes? And who knows how well they disinfect between usages. He shakes his head.]

It's fine though, no big deal. [He stares out over the lanes.] So, any preference?