It’s harder for us to mark our territory any more. When we urinate on things, it elicits frowns. When we scratch tree trunks, we bleed profusely from our fingers. And yelling “You are my property now” at women gets us pepper sprayed. I blame civilization. With Kudu Fridge Magnets ($50-80), we can mark the last thing that we know is explicitly ours. These vinyl magnets feature a preloaded image, or a custom image of your choosing. Might I suggest a photo of your scowling face? This will deter competing males from tampering with your food storage box. Or just circle them while baring your teeth and emitting a low growl, that works too.