This happened on an eBay company-wide mailing list a few months ago. The funniest/worst thing was the people at former subsidiaries who were still on the list,

This happened on an eBay company-wide mailing list a few months ago. The funniest/worst thing was the people at former subsidiaries who were still on the list, but couldn't log into the list-manager and remove themselves because of course they didn't actually have corporate network accounts any more.