User usrA creates dirA directory and runs chmod 777 on the directory. Can usrB issue another 777 on dirA? It appears the answer is no even if the usrA and usrB are part of the same group. I know this is a rare scenario but I just ran across it and found out that usrB receives an error when attempting issue chmod 777 on an already 777 directory owned by usrA. This is also true for files. I wanted to verify if this is something specific to my env or common in all. Runing on AIX...