Deus Ex: Human Revolusion -
I go all the way to the end of the hallway to find the gun dealer Seurat. I mention Thorpe's name and get a discount on some cool hardware. If I wanted to be really wicked, I could have sprinted down to Seurat's room and taken down his bodyguard while he was still outside the room, finding over 180 credits on him. Later in the game, Seurat will have new goods to sell.