Cat: Hey, look! Unattended tuna! Mine now.

Me: No! *picks up cat and moves it away* *walks away to talk to family for two seconds*

Cat: The human seems to have given me the tuna. Yay! *comes back and eats half the tuna*

Me: *walks back in* WHAT HAVE YOU DONE?! *grabs cat and moves it away* *looks at half-eaten tuna* WHY DO YOU DO THIS EVERY SINGLE TIME THERE'S TUNA