I tell this story a lot, but it is a great story.
I have played exactly 1 ninja my entire gaming life. His name was (horrible I know) Oko-nishi. My lame attempts at a Japanese-sounding name. In my defense at what I knew was bad I made him a half-orc. It must have been around this time I made him using the AD&D 1st Ed Oriental Adventure rules.
My then DM and I had worked up a D&D combat simulator (we called it BARD), and we plugged him in with 9 other characters. He was attacked by a Black Dragon (or Red, I can't recall) and killed. The dragon kept attacking him and only him. We had not worked out all the errors. In the end, he had been reduced to something like -70 hp. My DM offered to let him be ok or keep him dead.
We enjoyed watching it so much and getting the mental image of this stupid dragon jumping up and down on my dead ninja that I felt it was a waste to say it never happened.
I never played a ninja or a half-orc again.