Easy problem!![&:]
keep the cat inside the house,(not the garage).put a live trap just outside t5he cat door(put a board over the cat door).bait the trap with sardines in oil.
I have never saw a coon pass up sardines.it may take a couple of days,the coon my prowl the neighborhood and tak a couple of nights to come back.
if that doesn't work kill the cat and nail the cat door shut
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