Why not? What would you have done if you had found _him_ wandering on _your_ native world; found him sleeping on a field on Earth, red tentacles, six legs, pseudopods and all?  
How would you have handled finding an alien on earth?
The alien was gray and six feet tall with humanlike form.
A new commercial artificial-vision system is applauded by an article.
Two women are wondering what a man with a parachute above his head is up to.
A person is sleeping.
65 year passed between being sacked and flattened.
I hadn't remembered how you did not know about Tuppence, he said.
They were walking toward the barn.