A joke

My friends are quite good in joking. Yesterday he told me a joke that made me laugh till stomachache.
Here is the joke:

There are 4 friends, I label them as A, B, C and D. A, B and C went to play Mahjong at D’s house on Wed night. The next day, D feel bored at home (actually D was quarantine due to H1N1 suspicion), so he text A and ask him bring the other 2 friends go his house play Mahjong again. So A, B and C decide to play a fool on D. B call to D house. B identifies himself as police and says that he received complaint from D’s neighbour saying that they made noise and disturbed his neighbourhood. B warns D to behave himself and do not disturb his neighbour, and he also mention to D that the police will have a patrol tonight to check the neighbouhood. D was stunned.
Then D calls A and tell him about that. He suggests to play Mahjong at A house so it won’t disturb his neighbour. But then he afraid police will summon him because he is under quarantine and can’t go out. He is worry and decides to stay home alone and cancel the mahjong. The other 3 friends can’t hold on anymore and they all laugh out loud. C doing the sound effect like the One FM’s DJ doing in Morning Kaki: “Wan dou nei… wan dou nei…” which means “catch you”, B is speechless and the 3 words come out after that..

What a joke of the day…