Are you angrier than you used to be?

I’ve noticed in and out work that quite a lot of people are pretty close to losing their temper quite a lot of the time over the slightest inconvenience. This morning, just outside my house, a woman had to wait a good 20 seconds while another driver parallel parked, she absolutely lost it, slapping the wheel shouting her mouth off, generally looking a moment from stroking out. It made me think, is everybody less patient, less understanding, less caring than they once were or do we just notice those people more?