When you get aggressively overtaken on your bike by an angry white van man, only for you to instantly overtake them as they pull up a the lights and you whizz to the front into the bike box. Such a great feeling.
Being able to describe something bad in more articulate ways. Few things give me the satisfaction of calling something 'gash', 'a steaming pile of horse-crap'.
A particular favourite since joining GOT is 'pony'.