12 June 2013, 17:04
for guard duty, you could just use blasts on a whistle, one is "friend coming in", 2 is "stranger at the gate", 3 is "we are under attack"....or something like that, i'm sure the ex military can improve what I've just said!
Some people that prefer to be alone arent anti-social they just have no time for drama, stupidity and false people.