I'm an old man and I use an umbrella.
How does the old man find the relief in the rain?
Research, Resources and talk to your doctor.
He might like the rain.
Something about he bumbed his head and he didn't get up till the morning ? That's a rain rain go away rhyme so I'm probably right then.
What old man? All the old men I know are smart enough to stay out of the rain, but if it's unavoidable, they use umbrellas just like other people.