Why people have the urge to squeeze cute animals to death

When I was a kid my friend and I caught some little frogs. My friend liked his frog so much he smothered it to death in his hand. Lenny, the mentally challenged giant in Steinbeck's Of Mice and Men, squeezed living creatures to death because he loved them so much. Why do people do this? Two Yale graduate students, Oriana Aragon and Rebecca Dyer, are conducting experiments to find out.

Dyer's hypothesis:

Some things are so cute that we just can't stand them. We think it’s about high positive-affect, an approach orientation and almost a sense of lost control. It’s so adorable, it drives you crazy. It might be that how we deal with high positive-emotion is to sort of give it a negative pitch somehow. That sort of regulates, keeps us level and releases that energy.

"This aggression may be the brain’s response to the overwhelming joy incurred by such creatures (similar to how some people cry when intensely happy)."

Why Do We Smother Cute Things?