"NutCase".

A few days ago I was in Helensbrugh Central listening to some radio. I ended up sitting beside a woman in a raincoat. I took out my headphones because I thought she had asked me what time it was or when the next train is. She hadn't asked me anything at all, she had been having a little natter with herself.

I was sitting on the 5.40 train home from Helensburgh Central on the way home, I'd been at Gabbys'. I went onto the last carradge so I wouldn't have to buy a ticket. You can hardly blame me, £1something for a 3 minute journey. Rediculous. On the last carradge were two men. I'm guessing one of them had a mental dissorder... seeing as he was screaming all the way. I don't mean just shouting at the other guy or anything, he was screaming at the top of his lungs. He kept shouting random words and just screaming. He wouldn't stop. Almost everyone on the train was a bit freaked out.

Made me think; what on earth were going through their heads?
Woman talking to herself, someone in her head must have been talking back. I wonder what they were talking about. Was it a nice person talking back to her? What if it wasn't... and he/she was abusing her.
What was going on in that mans head? What was he seeing or hearing? Why was he screaming so much? It must have been something really scary. I don't like the idea of him seeing things no one else can.