For the 100% speedrun of Doug Hates His Job, you have to complete all missions. This can only be done through choosing specific dialogue choices. These are in order of appearance:

1. Pick DC, leading to the bathroom fight
2. Quit Job first, following this you will then be brought back to the dialogue options and then after that you will choose to go to work
3. In the park with the elderly people, the dialogue choice does not matter
4. Try to sneak in
5. Dialogue choice with your boss does not matter
6. Had a dream about printers
7. When you get offered chili, press option A and then when asked about a movie pitch, also choose option A
8. Choose the B option for the conversation about zombies
9. In the western level, the dialogue choice does not matter
10. Choose "Sounds Fun"