That day Pinkamena decided she had enough of Pinkie eating at inconvenient times and was forced to take drastic steps to ensure she could have her taichi hour without their shared sense of taste distracting her.
 
Pinkamena, trying to clean the frosting off Pinkie’s face, did not pay attention to the rag she picked up to do this and picked up one soaked in chlorophorm.
 
As a result she passed out a few seconds later, five minutes after this the two were found sleeping on the kitchen floor of Sugarcube Corner, resulting in….not THE strangest Pinkie Pie related incident Ponyville had ever seen, but it was certainly one of top 20.