don't try to delete non-existent user
don't try to delete non-existent user

ivarvong/rubytogether.org,rubytogether/rubytogether.org,ivarvong/rubytogether.org,ivarvong/rubytogether.org,rubytogether/rubytogether.org,ipmobiletech/rubytogether.org,ipmobiletech/rubytogether.org,ipmobiletech/rubytogether.org,rubytogether/rubytogether.org,ivarvong/rubytogether.org,ipmobiletech/rubytogether.org,rubytogether/rubytogether.org