Good grief Man, lighten up! What a boring, dry, dull, tedious extremely "scientific" look into laughter. His comment on companion animals was most vexing." Laughter is an arena in which companion animals such as dogs and cats fall short...they don't stimulate as much laughter as other humans. Pets usually lack the critical social codes necessary to unlock our laugh response." Social codes schmocial codes. My dog Pearl made me laugh harder, louder and more often than any human being I have ever met. I'm talking about the tears down your face bent over laughing that feels SO good. Some things you just can't make into a science project.