Had a dream I was in a cave with a door like you might find in a jail cell. Everybody in the cave screamed when they saw a T-rex walking around outside in the desert. I ran up to the door in time see some lady in a wheelchair begging desperately for entry. I let her in. She complained about there not being a bathroom close enough to the door. The ground was a network of criss-crossing timbers which created a grid of small square cells. In every cell were a bunch of tiny rocks. No one dared to walk on the rocks because the cave had been captured from the enemy - I thought they were North Koreans. Two others and I spent some time digging the rocks out of the cells to expose of a variety of landmines. I wasn't any good at disarming them, but I was great at locating them. One of the other guys handed me a screwdriver and told me to practice disarming. Jsnip4 was there wearing safety goggles which looked more like a bike helmet. I asked if I could borrow them and he said okay.