It's a good thing that Yugi has someone here to look out for him, huh. Because Inigo sure isn't going to go through with this.

"It's fine. I don't think that is going to do much good anyway."

Hence why he just thought it was a 'grab and shake the train' kind of idea! He's just trying to get its attention, that's all. They don't need to hold on for that. If previous experience with people being left behind on platforms means anything, it'd just be bad news.

"Let's just try to grab its attention instead! Bang on the doors, make a lot of sound. You can do that, right?"

Can you yell, Yugi? Show your spirit!