It's right there in the 'hit' line of Sperent's Coils, look it up if you don't believe me.
No, no, I know what you mean. No one asked me to, but I did describe it a Yuka leaning into the DD, disrupting it's vortex. Probably would've worked for prone or push, to, had he such a power, and assuming the DD can be knocked prone or pushed.
Encounters is pretty casual, and folks don't often go into detail describing their character's actions, but it occurred to me. The only other thing I remember someone bothering to describe as unusual was the Cosmic Sorcerer using a couple of blast attacks against an enemy backed up against some rocks - the player was unsure whether you could just launch a blast into a constrained space, assured that she could, she desribed the blast shooting into the sky as the wall of rock deflected it.