3. Phone line cleanup
Landline phones are quickly becoming a rarity in this day and age, but there are still plenty of them around. Pick a friend who has one and call him on it. Again, this one is also for people who don’t pay much attention to technology. Say that you are calling from a phone company and that a land line cleanup will be conducted in his area and that he needs to stay off the phone for the next hour or so, as there is a chance of receiving a mild electric shock, due to the process. It would be even more interesting if you use this prank on a colleague and they start running around the office telling everyone to put their phones down.
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