Mass transportation question?

Question

If you sit next to someone on a crowded train, how long do you wait to switch seats when a row of seats becomes available, whereby you wouldn't have to sit next to the person?

Answer 1

ooooh...wish I had the guts to do it right away. Or better yet...push him hard enough so that the smelly man is launched of my row onto the next one.

but I will go from the middle to the edge of three seats immediately so that there would be space between myself and the other person two seats over on the same row.