What has been the funniest thing that happened to you in your career?

We were in the beginning of implementation of a large international core banking program, Part of it was the Collection system , after exchanging e-mails, requirements documentation and several fights our requirements was very odd to the extent of escalation to senior level , accordingly a meeting ( the first face to face meeting) was held with senior participants from several countries , vendors and members of the steering committee to discover that what the international team called "collection" we called "Recovery" and accordingly both of us were working on a project that did not exist !! the Morale is : Never start your project with e-mails , start by talking to the people involved!!!