That's actually quite a brilliant hack. I wonder, has it ever been done? X launches a patent-trolling suit to try to get in on Y's patent. These guys launch

That's actually quite a brilliant hack. I wonder, has it ever been done? X launches a patent-trolling suit to try to get in on Y's patent. These guys launch a countersuit at X for using their patented technique, stalling the original suit. The best part is, the evidence for the countersuit is already known to the court...