By William McGee & Charlie Duffield A circus performer might end up paralysed after he missed the safety net and hit the ring while performing. Terrifying footage reveals the “human cannonball” – which is a phrase referring to circus artists with this particular job – balancing on the edge of the cylinder. He climbs inside it while the ringmaster asks spectators to wish him “so long” and count down. Then, the cannon shoots the man across the big top. The aerial stunt performer flies through the air but he slips through the gap in the safety net. There is an audible gasp heard from audience mem…