I think I had written about how you could just boot a Mac into a single user mode to basically reset a password for any user, and by this I really mean any user (i.e., even for an administrator account).  You probably would say “OK genius, I can just do that with booting into Mac the normal way, right?”  If you remember an administrator password or a user password, then it should not be a problem for you to just boot into Mac normally and change the password.  Nonetheless, in this case, I’m talking about a situation when you forget an administrator password specifically, therefore you can’t really use an administrator account to change a normal user password if you also forget the password…