Inspired by Pike's thread, share stories about kind people you've met in on-line games.
I once invaded a guy in Dark Souls who was obviously not up for fighting so we just bowed and danced around a bit. I gave him some Dragon Scales. He gave me a Titanite Slab (the rarest of things for the highest weapon upgrade). Then we waved and I left, hurray for no violence.
There are also some messages in my PSN inbox saying 'thank you' after co-op action with strangers. That's always nice.
Now you go.