Back when I was 90% muscle and the rest pure fool, A young lady in whom I had an interest told me that I had the manners and disposition of a troll and that she was most emphatically NOT interested in me!
I took the nickname troll to remind me to be kind to people regardless of what I thought of them. It's stood me in good stead over the years.
troll is lower case because I'm too lazy to hit the shift key.(Pretentios? Moi?)