Before you head off on the train to the Sector 5 Reactor, there is a guy and a girl standing in the Sec.7 station. Their conversation goes:
"I've had it!"
"Me too."
"You know, this is the first time we've ever agreed on something."
"Yes."
'Well the, shall we?"
"Yes..."

They then fall against, then past, each other and lie motionless on the floor. When you try speak to them again, they go, "Urrrrgh" and "Huff...wheeze"

Are they doing what it seems like they're doing in broad daylight? Or whatever time of day the team boarded the train. I can't seem to figure what they're doing in there...

Any theories?