This is similar to my strategy when I was little, like 4-6 years old, whenever anyone asked what I wanted to be when I grew up. The truth was I didn't know, but if I said that, the asker would keep pestering me with stuff like "what about a policeman or a fireman or doctor" etc etc etc and I knew I didn't want to be any of those- so I would say "a chicken" and they would assume I was brain damaged and leave me alone.