"Last Week Tonight" has covered some heavy topics this season -- our nation's infrastructure, troubles with law enforcement -- but this particular clip may be the most important of them all. Because, seriously, April Fool's Day is the worst.
John Oliver breaks it down, but it's pretty easy to sum up: April Fool's day is about pranks, and pranks are the worst. "Pranks are a way to say, 'I cannot wait to hurt the people close to me,'" Oliver says.
So this year, take the "Last Week Tonight" no prank pledge. Together we can do this.