The person moved out of their parents' house and decided to test if their family missed them by building a secret room in their old bedroom and hiding during Thanksgiving dinner. They detailed the process of creating the room and setting up cameras to see if their family noticed their absence. In the end, the family did notice the missing door but didn't realize the person was hiding in a secret room.
Here are the key facts extracted from the text:
1. The author moved out of their parents' house and only returns a few times a year.
2. The author wants to test if their family misses them or if they got used to living without them.
3. They plan to build a secret room and stay in it during Thanksgiving dinner.
4. The author turned their bedroom into a secret room last time they were home.
5. They removed a closet door to build the secret room.
6. The author plans to add drywall, paint, and a mirror to create the secret room.
7. They also plan to set up hidden security cameras around the house.
8. The author's family members started to notice their absence.
9. Some family members noticed the missing closet door.
10. Others did not realize the author was gone until the absence was pointed out.
11. The author successfully created the secret room without being detected by everyone.
12. The family eventually discovered the secret room and was surprised.
These facts provide a summary of the main events and actions described in the text without including opinions.