It was called: "The New Number Incident", It would have these steps.

Step 1 - Get a piece of chalk and a whiteboard.

Step 2 - Someone questions you what ∞+∞ Is.

Step 3 - CREATE A NEW NUMBER ON THE BOARD FOR IT TO START ITS NEW JOURNEY..

September 14 1996 - The New Number Incident.

That was the unused trollge incident.