What happened back there? It's a good question. He feels fuzzily uneasy just thinking about it, and after a moment he pulls back to snag up the bottle from where he set it down on the ground.

"I don't know if you realise," he begins, "but if anyone saw us sitting together like this I'd probably be reported and discharged. I mean, don't get me wrong, I know there's nobody to report that kind of thing to here... nothing to discharge me from... but, back when there was."

You know. That's how it worked. He uncaps the bottle and tags a swig for strength, holds it out questioningly to Ianto.