Boots melted on Hawaii, Kilauea Volcano, Pu'u O'o lava flow. Click on them for a closer look at the damage! Note the white discoloration around the soles (and no, the laces have been removed; they didn't burn off!) 

Danger? Ha! I laugh in the face of danger. Ingrid Ukstins casually poses next to the "extreme danger" sign (the small print says in part, "Collapse of lava bench occurs without warning, causing violent steam explosions and ocean surges.") The sketch on the sign shows a hapless geologist being flung into the ocean because she did not pay attention to the "extreme danger" sign.