Those are great examples. I’m always amused by the mechanism of experiments (as long as no animals are involved). “The first segment of the experiment required Subject a to watch a sad movie. Subject b would watch an uplifting movie. Subject c would watch a documentary on glue manufacturing. Subject d would watch no movie. Immediately after the first portion, we asked each subject to evaluate a fountain pen and write down know what they thought its price should be. The experiment informed us that Tuesdays are the ideal day of the week to promote specials on bacon for establishments that have muzak playing softly in the background.”