barrel surfing

[colcolpicle]

 not sure if this has been done before, but I figured out that a dozer will fall off of a crate on a conveyor belt, but not a crate on a gate. This was born:
ryzusib

[jnz]

That's pretty neat, especially the way you get the barrel to reverse directions.
You can surf on barrels on a conveyor belt but you need two of them.  You can also surf on a barrel that's being pushed by another dozer.  See vetabiv