Drinking vinegar

No really. Birthday boy here brought some miracle fruit pills with him. It contains some molecules that change the shape of your sweetness taste-buds, so they react to sour. This means you can eat lemons, and they'll taste sweet!
Or, ofcourse, you can drink vinegar. Hint: after a while // couple of lemons // couple of drinks the effect wears off on account of you washing away all the stuff. The vinegar isn't that good anymore then, as He is finding out in about 3 seconds.

And there was much rejoicement