A knock at the door. I answer it to find a young man wearing black T-shirt, black shorts (were they boxer shorts?) and no shoes or socks.

Me: Hello

Him: Er hello.

Me: Can I help.

Him: Er, I was just wondering if you had any white wine vinegar.

Me: Oh, hang on a minute.

Him: I’m from downstairs.

Me: Well, how about this? It is cider vinegar.

Him: Oh, Thanks, but no, it needs to be white wine vinegar.

Me: Sorry, what are you making?

Him: Oh, err, no. It is for the windows.

Me: Oh right… Well, I’m Kelvin.

Him: Oh right. Err yes, I’m David. Hi.

Me: Hi.