Get 'er done.
Disclaimer: Try to stray away from well know Halo/Destiny quotes. They've already been done before, I can guarantee it.
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[shoots someone] That one's for your mother! [shoots another person] That one's for the Pope! [shoots another person] That one's for Bobo the space-monkey! [shoots someone else] That one's cause I have ammo left in my gun! [shoots last person, bells ring] That one's 'cause I can!