I would say there are a big chuck of people who lie about Marijuana use. I know when I enlisted in the navy a bunch of people did. I am going to be upfront with my answer. I don’t think this one is a big deal. This will just be a yes or no question that will come up on future medical forms and security clearances. That is it Yes or no. No further information or story needed. Just yes or no. So to say it would be hard to keep the same story for all of life is a lie. You would just have to answer No and move on. I am not going to lie to you, If you marked No and then come back feeling bad that you did and tell them even a week later then you are done. No if’s ands or buts, Done right then and their.