ssh client read only mode

Hi all,

        I am looking for ways to have the openssh client [1] run in a read only
environment nicely. Will there be an option or flag to avoid
creation/edition any of files of the base system?

The reason I am asking is that command strings like [2] will for example
not stop the ~/.ssh creation attempt [3] as looked at the code in for
example the current trunk or else, which forces me to use a lower
LogLevel to avoid the output of this message, which just does not seems
pretty to me ;-)

/Rick

[1] Various versions in use:
    [rick@traffie] ~ $ ssh -V
    OpenSSH_4.2p1 FreeBSD-20050903, OpenSSL 0.9.7e-p1 25 Oct 2004
    rick@zodac:~$ ssh -V
    OpenSSH_4.6p1 Debian-5build1, OpenSSL 0.9.8e 23 Feb 2007
    rick@dellas:~ $ ssh -V
    OpenSSH_4.5p1 FreeBSD-20061110, OpenSSL 0.9.7e-p1 25 Oct 2004
[2] ssh -n -T -o "LogLevel=FATAL" -o "BatchMode=yes" -o
    "StrictHostKeyChecking" -i <key> <user>@<host>
[3] Could not create directory '<home>/.ssh'.