The teenager, now 17, pointed the gas powered weapon - which did not require a firearms licence - at the girl and pulled the trigger while they were inthegarden of a house in Gloucester last summer.
As if aware of constant threat, she always slept with her gun under her pillow, even at her family home in Yorkshire, where she preferred to spend her nights in a summer-house inthegarden rather than in her own comfortable bedroom amongst her beloved family.