I was in a meeting with a client where we were discussing the addition of some new interface tools for their web application.
They wanted to add another, totally unrelated search, to one of their current user interface/reports. I was sugesting that we create a new report interface/report rather than adding it to the existing report since this report was totally different from the one they wanted to add, and placing its information into the same framework of the existing report could be confusing to the user.
The client listened to my suggestion, and pondered how maybe displaying the new report in the old reports framework could potentially be illogical to the user... but they were convinced they were right.
His response to me was (and I quote):
"It doesn't seem Logical, but it makes sense."
I litterally laughed out loud and wrote down the quote in my notes!