Prank calls are rarer and rarer these days, mostly because the only people who use their phones for calling people are grandmas and debt collectors. Thankfully, that means that dastardly folk like ICEnJAM can prey on those who thought the days of the Jerky Boys and Crank Yankers were long past. Though that particular YouTube channel is full of prank call videos using switchboards from all across gaming, the latest choice is inspired: The Vault-Tec Rep from Fallout 4. As a salesman, the Rep fits in perfectly over the phone -- but the best part might be the guest star.
If you still want more Bethesda-based fun, you're in luck. ICEnJAM also hilariously harassed people with voice samples from Skyrim.