This morning, I had a flat battery. I was running late for work, so I left the car for DP to sort out and ran to get a cab. I jumped in the cab and called my boss to explain why I'd be a little late. My cab driver then offered to get jump leads from a mate who had a garage nearby, and said he'd drive me home to jump my car.
And he did.
And he would only accept half the tip I offered him.
Made my day