Freaky!
See dogs have their own agenda, they pretend to be unable to do some of these common human things, you know like stand up straight to reach the bin, take the lid off and grab anything they want out of it... Morgan obviously saw you chuck out his precious toy, went over to sniff and moan at the bin, giving you that 'ooh poor me can't do nothin' bout this...' look... then sneaked back later and BAMMM! There's the toy!
Right in front of your eyes!! Mysteriously made it's way back to his jaws!!
See? Not a mystery anymore..... I figured it out from one of my dog's late night phone calls... muhaha!