Based on the given context, craft a common-sense question, especially those that are LONG, INTERESTING, and COMPLEX. The goal is to write questions that are easy for humans and hard for AI machines! To create such questions, here are some suggestions: A. What may (or may not) be the plausible reason for an event? B. What may (or may not) happen before (or after, or during) an event? C. What may (or may not) be a plausible fact about someone (or something)? D. What may (or may not) happen if an event happens (or did not happen)? You can also create other types of questions. DO NOT make your question answerable without looking at the context, or question of which the correct answer can be directly extracted from the context. DO NOT ask a question that requires very specialized knowledge that is not common sense. DO NOT ask too simple or too short questions. Your question must be related to the context and answerable with common sense. Try to add more variations and complexity to the questions.

Context: I grinned like an idiot throughout . I looked to have the most friendly / outgoing coordinator , and I answered both questions flawlessly , with some slight babbling about my car . I spoke quickly , as I always do when nervous , but I like to think that only added to the enthusiasm I was trying to project . ( When I mentioned NYC , she invited me to attend a taping .
What may be the reason they grinned like an idiot ?

Context: It was n't a connecting flight so we need to stay in a hotel for a night . The hotel was just 2 minutes away from the airport . During our visit it was like only 3 days after the bombing at the front of a camp in Zamboanga . Bombing was the present enemy of the local government of Zamboanga during our visit . Next day it 's Sulu day .
Why did they have to stay ?

Context: Dear Cara , You turned 4 months old on Friday ! We had a very busy day with playgroup , the doctor and a long walk with Daddy , so I expected to write your letter in the evening . This plan did not take into account your 4 month shots that afternoon . Those nasty , mean , vile shots made you very upset so my whole evening was spent comforting you .

How many years old is Cara ?