Animation is solid, and good for a quick laugh.
Basically, it's two gags put back and forth and don't really have any coexistance or overlap with one another. Worm gets hit by rock, man pees on worm, story is over.
I think that technically, the animation was sound. The facial expressions were good. But it's still a stick figure man, and I'm not a fan of most stick-related animation, which is what prevents me from giving this high marks from an aesthetic standpoint.
Sound functions well enough.
Yet the thing is, overall, the story just wasn't that engaging to me. I did giggle for a moment, but still, that just seems to be what the animation aims for: one moment.