100. Lock all the Good NPC's in the Cloakwood Mines before you flood it:devil:
99. Crush every halfling, gnome or dwarf you meet to goo
98. When you meet one of the bandit leaders in either Larswood or Peldvale, join. Get a bit comfy in the Bandit Camp, pick out your own tent, talk to the colleagues, get to know the place. Then stop playing. Congratulations! You have finished Baldur's Gate as a bandit!
97. Charm every commoner in the town and have them assemble on the town centre. Make a circle of, say, five commoners. Then make another circle of commoners around that one, and another around that one, etc., untill you've run out of commoners. Then cast a fireball spell right in the middle.