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Funny Time:
X went to the bird market again and found a parrot priced at 3 dollars. So, he asked the seller, "Why is this parrot so cheap?"
The seller replied, "This parrot is dumb! I've been teaching it for a long time, but all it can say is one thing - 'Who's there?'"
X thought, "Well, it's cheap anyway," and decided to buy it. When he got home that night, he thought, "I don't believe I can't teach you!" So, X spent the whole night teaching the parrot to say something else. But by morning, the parrot still only knew how to say, "Who's there?" This made Little X angry, so he locked the door and went to work. After a while, someone came to check the gas bill (let's call him Z).
Z knocked on the door, "Knock, knock..."
Parrot: "Who's there?"
Z: "Gas checker."
Parrot: "Who's there?"
Z: " Gas checker."
Parrot: "Who's there?"
Z: " Gas checker."
In the evening, when X returned home and saw someone lying on the ground in front of his house, foaming at the mouth.
X: "Hey, who is this?"
From inside the house, the parrot said, "Gas checker!"