Originally Posted by
FWAAA
I generally assume the worst: that they were liberated by an employee (or former employee). I haven't looked, but I suspect that legitimately-obtained Admirals Club day passes are non-transferrable.
You can 'buy' them for 300 points on Business ExtrAA. They do not have any passenger's name on them and expire after one year.
AC AAngels also get a limited amount each month to give to friends and family. Same T&Cs. Just about none. Except that they expire.