One day my dog came trotting over to me with a toy in her mouth. I happily acknowledge her and say "whatcha got honey, oh your monkey, how cute" and I take it from her and toss it across the room. "Go get it".... she then looks at me and just lays down. Oh shoot what did I just do? I felt horrible and realized how rude I was just being. Imagine walking up to someone to show them something (say a picture on your phone) ... and they look at it and toss it across the room. SO RUDE!
Actually what I did learn, I also tried it out on some of my customer's dogs as well, is that dogs don't always want to fetch! (Not all dogs that is) Sometimes they just want to hold it in their mouth, squeak it 8 million times, bop it on things and enjoy making it super slobbery. So I started to just interact with the toy and not toss it away. She seems much happier and plays with me a lot longer!
If she brings me a toy I acknowledge her & the toy... I poke at it, maybe tug on it a bit, squeak it and just be playful with her. She really seems to enjoy this activity. Now we do play fetch. I will only toss a toy if I initiate the game first. If I throw the squeaky ball and she chases it - I will take it and toss again when she returns.
Just some food for thought.... next time your dog brings you a toy try just engaging and not throwing.