Hey, boss? I think I messed something up here.

Whenever you see a crane moving a heavy object and think, “That looks kind of precarious,” that’s probably because, at the end of the day, it is. Although we’ve developed numerous systems to prevent heavy things being dropped on us by cranes, it can still happen — and the results, as this video shows, can be pretty amusing.

In it, a crane can be seen lifting a truck, then dropping it — in the process dropping a second truck.

Hope you’ve got good insurance!