Weirdly, my dog does this. The first time I planted potatoes I hadn’t checked them yet and one night my dog came back from going outside and dropped a potato in my lap. The next day he did it again and I went out to the garden and found two holes where he’d been digging them up.

If you have some technical ability and are on Android I’d setup sshd on the phone (there are various apps to do this easily) and use rsync(1) or scp(1).

If you want something less technical, I use the Conversations app on my phone and Dino on my desktop for chat and sometimes send files to myself. Not ideal, but it does work pretty well for one-off smaller files.