The first Wednesday of the month. To celebrate, one wears clothing depicting pineapples, eats pineapples, drinks pineapple juice, sings/dances to the Pineapple Wednesday song, and does anything she/he can think of that relates to pineapples.
It is my favourite day
Of the month!
Data's "daughter"/creation in episode #164 ("The Offspring") of Star Trek: The Next Generation. She was an android neurologically modelled after Data, but for some reason she could experience emotion. This overloaded her neural circuits and ultimately destroyed her.
Like a child, Lal wondered, "Why is the sky black?"