From Scientific American:
New research by two Yale University psychologists details how the sight of something cute brings out our aggressive side. Rebecca Dyer and Oriana Aragon investigated “cute aggression” by showing study participants slide shows of either cute, funny or normal animal photographs. As they watched, the participants held bubble wrap. The researchers, attempting to mimic the common desire to squeeze cute things, told subjects to pop as many or as few bubbles as they wished. People watching the cute slide show popped significantly more bubbles than those viewing the funny or control pictures, according to results presented at the Society for Personality and Social Psychology annual meeting in New Orleans. “Some things are so cute that we just can't stand it,” Dyer concludes.
Every study should reach this conclusion.