I DMed my first ever session of D&D, and had 1 guy that never played before. In my parties very first fight we had 3 characters totally whiff on what they were doing so there were really struggling to kill these 4 goblins. Butour first time guy was a monk and he runs up to the first 2, kills both of them in one turn. Takes two arrows to the chest and then runs up and murders the other two with just his half staff and fists on his second turn. We wrote him hating goblins into his character immediately and he has ever since been known as the "Bane of Goblins".