It’s a volcano! 20,827-ft Parinacota on the border of Chile and Bolivia, to be specific. Seen any hyper-explicit, obvious or just plain hilarious road signs lately? (Photo by Dan Lundberg)

When is it okay to spoil a movie? When does trolling become art? One artist asked these questions by spoiling the ending of Looper to anyone who happened to drive by. SPOILERS AHEAD (duh)

Road signs — they're everywhere. They tell us where to go and where we are. Their helpful displays of numbers, letters, and in some cases even arrows guide us to where we need to be and help keep our children safe.

The killing of black Florida teenager Trayvon Martin has sparked a weird kind of racial spasm that's resulted in terrible articles, Spike Lee scaring old people, and made Facebook almost unvisitable for the past week. Now Metro Detroit's getting in on the bile after someone in Dearborn — the suburb of Detroit home to…

Commuters in suburban Washington, DC, are the latest victims of electronic road sign hacking: Drivers approaching a one-lane bridge faced an inquiry about their choice of underwear. The news crew footage below recorded few affirmations; take that as you will.

Spotted near that ultimate source of Christmas cheer, Washington DC, by reader Bailey, this hacked road sign brings a message likely to disturb more commuters than even zombie apocalypse warnings. If Christmas doesn't come from a store then how do you show your car that you love it?

We have repeatedly warned you not to hack electronic road signs. Now some free-spirited Portland, Ore., natives have hacked one to warn of impending Hammertime.

Fans of Jalopnik and Bill Caswell, our indomitable Hollywood-bound $500 Craigslist rally car driver, decided yet again not to listen to our pleas against hacking electronic road signs, hacking a sign at this weekend's Pikes Peak race.

Two-and-a-half years ago we published a handy guide on how to hack an electronic road sign. Since then, America has found itself drowning in a sea of zombie warnings — and Jalopnik has become the unofficial whipping boy of the highway Lite-brite hacking community.

How do you furnish your shack made of road signs? Furniture made from the same. This short orange shelf would look great in the foyer.