Well if you do decide to, let me offer you my advice. When on base you're going to want to salute everyone you see and acknowledge them with a brief, "Sir!". Now if anybody yells at you for doing the wrong thing, yell back. Show them you are a man and have what it takes to be in the regiment. Sandgropers advice to wear an SAS beret is a good one too.
If all else fails you can always try to get into the commandos. They would welcome you with open arms.