I 'll walk outside to take the trash to the dumpster , and i 'll wonder what crazy thing will happen to me on the way there . If i see a bird flying above me , i shield my head and watch the bird fly away , just to ensure it does n't turn around to shit on me . I walk carefully , because i often trip over my own feet , or small objects that would n't ordinarily trip a person up . A tiny pebble can be a disaster for me .

Generate a question about the above context.
Why would I shield my head ?
Available choices:
1). To prevent a bird from shitting on me
2). I was scared of a loud noise .
3). The sun was too bright .
4). None of the above choices .