I was playing Fallout NV, when I get to go to Camp Cottonwood Cove, talk to the Dean Serverus, had already used the option of dialogue to teach defuse mines, then use the option "I have other questions," when I give you wonder about the movement with the RNC, then pressed the option of returning to the initial dialogues, to my surprise, was the dialogue to teach demining again, when I click me again to experience and reputation, though I doubt they reach do something with the error because it is an old game, I leave it just to see if they can do something, take pictures of the bug, but I can not put them for some reason