now I remember the story just a tad bit different..we were too petrified to jump over the huge thing..so all 4 of us were screaming at the top of our lungs for Dad..he came out and got the rock..now I can't remmber if we then jumped over it so he could throw the rock..or if your story is the exact right one..anyhow I will never get the size of that spider out of my brain.