How would this hypothetical be sorted out?

[Adam]

Originally Posted by bas2456

But if B is also ejected, would you not treat it like a double tech and go POI?

Then you take away the three free throws. You're only calling B for one foul, right? Or does he get two for doing less than his opponent, who only gets one?

And, as bradford alludes to, B's foul was a flagrant personal followed by A's flagrant technical. This is a false double, penalized in order.