where do office docs "go" when OOWriter freezes?

[john]

Hi all,

Occasionally open office crashes and students lose there work. I'd
like to be able to recover the doc for the student. I assume that the
doc would be in /tmp but I don't find it there.
I do see an open socket

srwxr-xr-x    1 some.student       domain users       0 2010-06-07
08:32 OSL_PIPE_16621_SingleOfficeIPC_51e26689c3c9b24dbc107df4956af5

So my question is where is this document and how can I recover it? And
how can I pinpoint the cause of the OO crash?

Thanks!

John