Am I in the wrong for throwing away pizza because the cat got to it?

I live with my mom. This dude, and his girlfriend moved in several days ago. They're pretty nice. I whent downstairs early in the morning, and I saw two pieces of pizza on the ground, and a plate on the counter, so its obvious the cat pulled it off the counter, because she's done it before. I figured they wouldn't want a pizza that a cat ate off of. Also it way laying on the dirty ass floor, so o threw it away. I just whent downstairs when the guy was downstairs, and he asked me if I know what happend to the pizza, and I told him what happened. He said "okay", and whent upstairs. I heard them in the bedroom, and he was like "he threw away my pizza!". Am I in the wrong?

Am I in the wrong for throwing away pizza because the cat got to it?
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