When you're a kid, school being cancelled is pretty much the greatest thing you can possibly fathom. Which is why this video is so mean AND so great.
Some bus driver decided to prank a bunch of students by stopping the bus, and announcing that a water main broke at the school, and they'd all get to go home.
Then after they'd sufficiently screamed their faces off and high-fived each other . . . he told them it was an April Fools' Day prank. For some reason, the video just found its way on to YouTube.
(Search for "April Fools on a School Bus." They go nuts at :35, and find out it's a prank at 1:30.)