Today, when I was in Osaka University on business, amazing e-mail sent to me from my friend(A) in Osaka Prefecture University. The e-mail says "I'm eating lunch with a friend(B)*1."
The friend(B) is the very man whom we thought to be retired from my university.
I'll try to contact with him.
*1:Though real name was written in the mail, I wouldn't write the name here in order to protect privacy.