Once one of Krsna’s friends informed Him,
“My dear Krsna, if You will open Your mouth, then I shall give You one nice sugar candy mixed with yogurt.”
Krsna immediately opened His mouth, but instead of giving Him sugar candy with yogurt, the friend dropped a flower in His mouth.
After tasting this flower, Krsna turned His mouth in a disfigured way, and upon seeing this all His friends standing there began to laugh very loudly.
– From Nectar of Devotion