You're talking to a friend about your teenage son. In the past few months, your son has been starting to listen to loud and aggressive music. He wears dark clothes and acts angry a lot. But you're not too worried because you think it's normal for ...
Your wife cooked some fish for dinner. It was good, but now you're trying to clean the dishes. You've tried to wash away the smell of the fish. You say this because the smell is still there.
Your coworker came to work looking really scruffy. His hair is messed up, his clothes are wrinkled, etc. He doesn't usually look this way, so you're worried about him. When someone comments on how he looks, you say this.
One of your coworkers came to work today with a dirty shirt. His hair is also uncombed and he has a little bit of stubble. You're talking with a coworker about him. You say this.