9. No Matter How Many Simpacks, You're Gonna Drink Out Of That Toilet To Heal Up
For some reason, no matter how disgusting the source, water is one of the most effective ways of healing up. Because it makes perfect sense to take damage from drowning, drink some water, then be back to full health, obviously.
8. You've Got 100 Weapons, But Only Use Two
From shotguns and laser rifles, to flamethrowers and pistols, you've amassed the United States' largest collection of post-apocalyptic weaponry. When you've got the Deathclaw Gauntlet and the Firelance though, why bother using anything else?
7. You Have A Small Heart Attack Whenever A Feral Ghoul Creeps Up On You...
Be honest. You've almost had some bowel-related accidents more than once while navigating Fallout 3's sewers and underground train networks. Particularly when playing with headphones, there's nothing worse than that little pitter patter of running, before the nightmare-inducing gargle in your ear.