This was sent in from Carrie:

My friend's step dad used to work at British Aerospace. This guy had an
office right at the end of a corridor. One afternoon, he saw someone in a
brown suit walk past his open office door and carry on towards the end of
the corridor. He left his office to see who it was, as he wasn't wearing the
standard uniform. here was nobody there.
 A few days later a few people were having a meeting in his office. He felt
somebody touch his shoulder, although there was nobody there. He did some
research and found out that years ago, they used to wear the same brown
uniform that he had seen the man wearing, and there had been an accident in
which a few people had died. He insisted on getting a new office.