ranks as option Z
Option A ... get the little lambs OUT and as far AWAY as possible.
Option B ... if option A is met with resistance, break as many bones and rupture as many sensitive glands as possible or die trying while the children continue the pilgrimage to safety.
Option C ... Offer to help the intruder in achieving his objective. IF you talk a gun off the nut case PLUG HIM TILL THE MAG RUNS DRY
Option D ... call his parents and report his behavior.
Option E ... Call your parents and report yours.

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it just needs more voltage