I used to work for a regional telecom, at that time I was doing third tier support of applications. A couple devs and a couple support people went out to the users, the devs had been working on a new tool to solve some major problems. The devs had been working on it for 6 months, and this was the first the end users were seeing of it.

Next thing I know we're drive back across state line, dev's tails between their legs. As far as I know, no-one ever spoke of that project again.