Several times when I've worked on a project at work that involves data analysis, I get really impatient responses when I don't come to a firm conclusion. We're not even talking about highly charged subjects. I'm not aware if my stakeholders are biased toward one conclusion or another -- I think they're just very upset that my analysis contains uncertainty. They expect me to be able to massage any kind of data to derive clear and obvious facts.
Thankfully, I can refuse this without much consequence, but it's really opened my eyes to the potential pressures to corrupt the integrity of fact-finding in even mundane circumstances.