I actually can't see where anyone was accusing of making it up in your head? I totally believe that you've seen the research and believe it, but *I* haven't seen it and therefore why I should believe it? I haven't seen that research to convince me.Honestly I just can't be bothered anymore. I am just sick of people thinking I make these things up in my head, when it is verifiable research done by some of the most respected people in the business.
I have googled but I can't find anything ground breaking in regards to it. I have found some information to suggest dogs can feel a kind of dulled down envy. That's where I get my opinion from =)