A deadly joke

1. I am not a TV. what are you reading? After studying for more than ten years, I found that kindergarten is the best place to mix. I ordered a steamed dumpling in the school canteen yesterday. I thought I was still making it, so I poured a small dish of vinegar and found an empty table. When the steamed dumplings are ready, I'll get them back and look at my vinegar. Maybe the cleaner thought no one had cleaned it. Well, I poured another small dish of vinegar. Where are my steamed dumplings when I come back?