>sidewalk coin

Rich man would pick it up, that's $720/hour if it takes 5 seconds. It's things like that that make you rich. Poor guy would probably pick it up too unless he's paranoid people will think he's poor.

>bus

Again looks like huge earnings per hour. He'll take the bus in this example unless he has something very lucrative that he's missing out on, but he's drunk so that's very unlikely.

>restaurant

Depends on the cost of the different places. It might not be worth the time to walk to the other place if the difference isn't great. If he's on a weekday lunchbreak, his time might be better spent elsewhere. Same thing for the poor guy.