On AC 194 yesterday, I did not get an upgrade, but I had my original seat -- 12D, the first row behind business. I was able to see through the gap in the curtains everything that went on there.

Now, I've always considered the washroom at the front to be reserved for business class ticket holders, but all through the flight, people from the back went up to use it. Whatever. An hour out of Montreal, I felt the need to use a washroom, and for 15 minutes looked to the back of the plane. The red lights were always on, there was always a lineup.

So right after another woman from the cheap side of the curtain used the front washroom, I went up there. I was turned back, and told to use the one at the back. OK, I said.

Fifteen minutes later, I got back up to my seat at the front. And during the rest of the flight, I watched as people from the back went up to use the washroom at the front. The dude looking after that area turned none of them away. Only me. I have no idea why I was the only one deemed unworthy, and really, it was annoying. My pee, and my pee alone, is not good enough for the business class potty.

So what are the rules regarding this? Should I have pressed the issue? I planned to mention it to the dude as I was getting off the plane, but because of gate issues we were terribly late getting in, and I had a connection.

I know, I know, in the great scale of issues, this is a minor one. But I am curious to know what the rules are, and whether I should have stood my ground.