Okay, imagine you're driving. The vehicle behind you is an ambulance with flashing blue lights and wailing siren. The only road leading to the casualty department is ahead of you. What do you do?

Okay, picture this. There is a bus pulled in on the left, at a bus stop. There is solid oncoming traffic on the right. There is a narrow channel down which a single vehicle can travel. You are driving a car towards this bus, preparing to pull out into this empty channel. Behind you is an ambulance with flashing lights and wailing siren. This road is the only one leading to the hospital casualty department.

Do you, a) Pull in behind the stationary bus, which is already signalling to pull away from the kerb, but is waiting for the ambulance to overtake,

or b) Slow down, uncertain, then hesitantly pull out into the channel at the last minute, forcing the ambulance to slow down. It takes you several seconds to accelerate uphill in your clapped out shitheap of a car to get past the bus, in which time the ambulance could have been through that gap and halfway to the casualty department by now.

Guess which the driver I saw tonight chose. Wanker.

I mean, come on! An ambulance with sirens screaming, heading towards the casualty department? Obviously, there's someone in the back who is in the process of dying, in urgent need of life-saving medical treatment. Sod it, this driver thinks, I'm not getting stuck behind a bus. Let's decrease the patient's chances of survival a little bit, to shave a few seconds off my journey. Who cares if the guy having a coronary in the ambulance dies?

What a scumfuck!