Quick! Go Dig A Hole!

Hilarious suggestion in the comments of Reason Magazine:

if you live in a rural area like i do, go out in the woods somewhere and dig a hole. don't fill it in. we'll call it the plausible deniability hole. then, when the state comes for your guns (bullion, whatever), take the officers to the hole. when you get there, say "damn, somebody dug up my guns! they musta been watching me from the ridgetop! i had a funny feeling when i was digging it, but i didn't see any people or cars, so i figured it was just nerves!"