Mostly, those in the military who say that they "do crossfit" are just kidding themselves - throwing around logs and pulling tires for 20 minutes doesn't equate to the CrossFit method. Doing pushups and sit-ups doesn't equal CF. Doing only metcons doesn't equal CF. I've given up on explaining it to people unless they're really motivated to learn. Mostly people ask me about it when I dust them, and then they lose interest when they realize that it's not an easy way out. I usually just tell them to try out my parallettes, and they get a lazy attitude and say naw, I'd rather just lift and go on a run.