Because coloring...thats why!
Adult coloring books are awesome. My nice friend form California sent me five of them. Some of them are pretty raunchy and I love them. I don't have kids so no need to worry about them being "found" (Like when I "found" my Dad's playboys he used to stash under the towels in the bathroom cabinet" LOL. ) This was made with Prisma Colors colored pencils and is a great way to pass the time.