In fairness Niall I only mentioned what happened a friend of mine, he actually thought someone had kicked him on the leg but there was nobody near him.
When you tear a calf muscle you feel/hear a ‘pop’ and you think someone or something has hit you from behind. I’ve known lads who have been convinced they’ve been shot or hit with a golfball. It’s also usually a fairly innocuous movement (like Allison’s) which adds to the confusion as to what has happened.
Happened Kevin Durrant in the NBA playoffs this year. Was running back and his leg gave way and he looked back to see if someone hit him but there was no one near him.