Stop throwing it so quickly

That usually means the person is an idiot.

Or clumsy. Or a small child. Clumsy people and small children still need to eat, though.

This would be a good incentive to keep the floors clean so the food is not wasted

One of them is synonymous. Clumsiness is a learned (or lack of) behavior, whereas children can be taught to be mindful of their actions. As a child who grew up in a poor Eastern European family, I was punished for my clumsiness, which led me to become an adult who pays attention to what he does. While I empathize with individuals who have significant cognitive deficits, I generally have absolutely no tolerance for those who do not make an effort to be mindful of their actions.

I’m pretty sure my clumsiness just came with my ASD.

Assuming it was diagnosed by your doctor, it falls under the 'cognitive deficits' section in my previous comment. Even so, it doesn't excuse one from at least trying.

And yet here you are, doing this.

Guess someone in that category felt called out. You might need to pay attention to what others say, not what you think they say.

Or has health issues