It's bad to wear smelly or dirty clothing
Greg has been working on his yard and is getting hungry.
Greg wants to go pick up something for dinner.
Greg decides to take a quick shower before he runs to the restaurant to pick up his meal.
Greg decides to wear the clothes he has been working in and go into the restaurant to pick up his food.
The customers eating at the restaurant are not bothered when Greg comes in.
The customers eating at the restaurant are disgusted by Greg's dirty clothes and smell.