He walks the line?

I was driving the ninja girl to work in the pre-sunrise dark. At one point, a bright light--weaving a little--appeared up ahead. A bicyclist? A person with a very bright flashlight, crossing the road?

When I got closer, it became clear that it was a person, a man, an older man, in dark, loose clothes, with bright LANTERN in his hand, walking along the double yellow line.

What?

There was no chance to pause; the ninja girl had to get to work on time.

But what was going on?

Was he drunk? Was he suic...