From willy@foo.usfca.edu  Thu Apr 17 15:39:19 1997
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Received: (from willy@localhost) by foo.usfca.edu (8.8.2/8.8.2) id PAA07063 for nick; Thu, 17 Apr 1997 15:39:19 -0700
Date: Thu, 17 Apr 1997 15:39:19 -0700
From: Willy 
Message-Id: <199704172239.PAA07063@foo.usfca.edu>
To: nick@foo.usfca.edu
Subject: cwd
Status: RO
X-Status: 

foo:/proc/6857/cwd/cwd/cwd/cwd/cwd/cwd/cwd/cwd$ cd cwd
You are hit by a falling rock!
foo:/proc/6857/cwd/cwd/cwd/cwd/cwd/cwd/cwd/cwd/cwd$ ls
cmdline  environ  fd/      mem      stat     status
cwd@     exe@     maps|    root@    statm
foo:/proc/6857/cwd/cwd/cwd/cwd/cwd/cwd/cwd/cwd/cwd$

Haha!
=wl