It is beautiful outside. The sun is hitting the watter just right, there are sailboats in the river and there is a clear view of the horizon. And yet, I want to just go and growl at people. Bite them, if at all possible.
If I had a banner, it would say: "Engage with holder at your own risk - HIGHLY VOLATILE".
So, there. If you know better, back up slowly and quietly walk away, or else lose an ear (if you are lucky!).
And no. It's not hormones.