Anyway as you've probably guessed I was a little confused now but I carried on in vaguely the right direction or occasionally the opposite. I think I may have been driving down a one way street (the right way) when I came to a right-hand turn. My destination was approximately right so I paused to first check that it wasn't one way (or if it were that it were the right way). There were cars parked on both sides of the road and facing both directions. From this I concluded that it wasn't one way. Here for your edification is a little picture.
And this is where I went wrong. Now I understand why it's illegal to park the wrong way on a road: it's confusing for other drivers. Naturally pulling around the corner I drove on the side of the road indicated by the direction of the parked car. A perfectly reasonable mistake I'm sure you'll agree.
It wasn't until I reached another junction where a car waited to pull out and the driver looked at me in bemusement that I cottoned on.
I would normally by now be convinced that I am suffering from old-age-itis but I've had this blind spot about sides of the road for more years than I care to recall.
Don't worry: it isn't usually a problem for me so you don't have to stay off the roads when I'm about. it's only when I'm lost/confused/in a one way system that I'm best avoided.
P.S. It's like a computer keyboard. Usually I know instinctively which button to press to capitalise but I just stopped and thought and ended up with an italicised letter instead.
P.P.S. Please tell me I'm not alone in this.