[mabbo]

There's lots of great videos to prove you wrong on that one, actually.

The most dangerous time for a can of gasoline is when it's just been emptied- because it's actually full, just of air and gasoline vapor. It's a bomb at that point if you aren't careful. Rockets? Similar problems.

Watch what happened a few years ago when another Falcon 9 fell over because of a faulty landing leg: https://www.youtube.com/watch?v=xr7GcpFGWd0

[achamayou]

Rockets contain both fuel and oxidiser, explosions when they are full are considerably worse than when empty. Compare the video you have linked to clips of Atlas or Soyuz blowing up on the pad.

[mabbo]

Too true! The Falcon 9 that exploded on the launch pad certainly proved that point.

Nonetheless, an empty rocket is still dangerous.