30. In the same episode, Worf is served a glass of a favorite drink that he promptly pours out while a child ages by a span of years in less than a minute.
From Quiz Name That Episode #5
Answer:
Hide And Q
In the beginning of the episode, the omnipotent alien has transported Riker, Yar, Data, Geordi and Worf to an unknown planet to commence the 'game' he has in store for them. To celebrate the 'occasion', he magically puts a glass of their respective favorite drinks in their hands, which a disgusted Worf turns upside down and pours to the ground. Later, after Riker has been granted the omnipotent powers of the Q Continuum, he bestows a gift upon each individual crewmember on the bridge, giving them what they most desire. For Wesley, it's his wish to become a grown man, so with a nod of the head, he transforms the teenage acting ensign to exactly that. But when everyone realizes that the source of their gifts is the powers of the Q Continuum, they ask for those very same gifts to be taken away and restored back to normal. In "The Child", it's true that the alien lifeform that impregnates Troi ages by a span of years (from an infant to a young boy) throughout the episode, but Worf pouring a drink onto the ground does not happen at all. In "Parallels", even with all of the changes Worf experiences in his jumps back and forth to and from the alternate universes, there are no children seen in any of them. Besides that, he's never served a drink; he only replicates champagne for himself and Counselor Troi to celebrate his birthday at the very end of the episode. "Yesterday's Enterprise" offers up a little bit of trickiness, as the only 'child' who could be seen as somebody aging by a span of years is Wesley who, as a result of the encounter with the anomaly, becomes a lieutenant on the alternate Enterprise and, presumably, older. However, Worf is never served a favorite drink that he disposes of, even though there was in fact a scene where Guinan serves Worf a glass of prune juice she wants him to sample at the very beginning.