the mass of smelly pollution goop moves in place, it bubbles as it forms into a basic humanoid shape.

Aaah~ So, this must be what it feels like to be sentient.

This is great!

the goop squelches as it walks along the sand on the airstrip noticing that as it walks it spreads goop trails.

Ooh, I can spread?

the creature snickers as it gets an idea.