Judging from the left side of this syringe, I’d get 1 unit of insulin. Judging from the right, more like 2 units. Yes, somehow the stopper was misshapen.
You can imagine my surprise, so here’s a word to the wise: when preparing your shot don’t multi-task. Keep your eye on what you’re doing, well both eyes, and you may avoid an unpleasant mistake.

BAD!!! Am using some syringes I cannot stand. They are safety ones made by BD and it is sometimes hard to see the lines for tiny shots because of the safe feature of the gizmo that caps the needle. When they are finally gone, will plead for ordinary BD syringes.
Thanks Kris, I like the syringes that have half unit marks, they make small doses easier.
Those do sound like they’d work well. Following you, I learn so many great things!