On Day Four of SciFi Mafia’s 21 Days of Christmas Loot, take a page from Columbus’ rule book with this “Rule #2: Double Tap” tee shirt.

Here’s the official description of this awesome piece of wearable advice for the zombie or other monster apocalypse:

Set the Standard for “Not to be F*cked With”

Any predator is generally there for the easiest kill. So your goal when dealing with dragons, zombies, or managers is not to be the easiest target. You gotta run faster (Rule 1: Cardio), think quicker, and swing harder. One way to ensure the latter is to make sure any undead you’ve disabled are actually permanently out of the picture. You can’t go by “Does it look dead?” with zombies. They ALL look dead. So a Double Tap is a safe way to ensure your own survival. One, two, and you’re done. Move on. Get back to looking for Twinkies.

“Rule 2: Double Tap” in 3D letters with some blood spatter on a black, 100% cotton t-shirt.

Buy this excellent “Rule #2: Double Tap” tee for $15.99-$17.99 (depends on size) here.

Hot Tip from SciFiMafia:  Coupon code: “HOLLYDAZE” gets you $5 off purchases $25 and up or $10 off purchases $50 and up!

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Stay tuned every day on our countdown of 21 Days of Christmas Loot for more hot Christmas gift ideas!