Peter comes very drunk home late at night. He wakes his sleeping wife: “Emily wake up! You know what just happened!?”

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“No”, she replies sleepily.

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“I went to the toilet and the light switched on all by itself. And when I went out of there, the light switched off again without me having to do anything. I think I’m getting super powers!” 

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Emily replies groans: “Oh no, Peter! You pig, you just peed into the fridge again!!!”