I was taking the bus, and there was this lady who was bitching at anyone who remotely touched her. At the time, I was walking around with a cane, and the bus was completely full. I was standing very close to her (she was sitting at the front) and had the misfortune to hear all her whining.

Alas, some people clear the bus, and I move towards her. And I'm forced to stop, right in front of her. I accidentally brush her foot with my bag - she looks at me and goes berserk telling me not to touch her foot.

I look at her, then show her my cane : "This bus is full, you're not the only one with problems, can you stop being a bitch?"

She recoils, and screams : "This new generation has no respect for elders!"

That pissed the fuck out of me, and I growled back : "If you don't show respect, you don't deserve it back, even from younger people".

Thankfully, I moved away, but I had people congratulate me. Felt pretty good xD.