I have some experience regarding this as I had a cat which also behaved in funny ways. Whenever it killed a prey anywhere it used to drag it and bring to the house and present it to us as if telling us that as if it has done some remarkable job.
Once it killed a long thin snake and took it in her mouth from one side and then dragged it to the house and left on the floor and came to us probably asking some reward. These pets have really their own strange ways to behave.
Thoughts exchanged is knowledge gained.
We were having two tortoises in our house. We used to take care of them very nicely. But whenever we go on tour feeding them was a problem. So oneday we have left them in a big water pond near our house. On that, we felt very sad as we got accustomed to them and leaving them gave us some pain.