not rude at all, in fact it’s time for Story Time with Mod because there’s a very silly reason for that (and it’s one of the reasons I quite like my diagonal grin)- 

You might not have noticed but I often get a particularly deep crease/dimple on the right of my face when I contract my zygomatic majors (smiling muscles);

This is because I was (and am) a very accident prone child, as any of my friends can tell you, and one day my mum was called by the headmistress because I had, for no apparent reason, driven myself head-first into the concrete of the playground. I had a bump the size of a duck egg on my forehead and a rather spectacular bruise on my right cheek, but the bump-on-the-noggin was more of a concern so when that proved to be not very awful we all pretty much forgot and got on with our lives. Later, after my face had healed, mum noticed that I had not only a dimple that I hadn’t had before, but my smile looked like this;

Before the accident the left and right side of my smile were the same and I have photos to prove it. Afterwards, and forever more, the right side of my face had an ‘American smile’ while the left had a ‘British smile’- aka the right side pulls back and upwards exposing the teeth in an open ‘v’ shape, whereas the left is a lower, curved arc which ends like the tip of a crescent moon. This is because when I voluntarily decked myself using the aid of gravity I managed to fracture my skull, and with a little fibrosis between the fracture on my zygomatic bone and my cheek I developed a connection that shouldn’t really be there! 

So, yes, I have a very literally cracked smile, and I think that’s pretty hilarious.