suggestions on where to grow

I am considering growing some weed, however I do not know where is a relatively safe place to grow. I remember my brother used to grow in my house's attic, but my dad caught him so that would be the first place he would suspect. Actually I'm pretty much against growing indoors because my dad notices everything.

So just today I got to thinking about what it would be like to grow outside. By outside I'm not really referring to my backyard; I am thinking more along the lines of a wooded area (probably some sort of secluded public area). There is a heavily wooded area by handball courts I used to play at. It seems like an idea that is almost too perfect, so that is why I am a little suspicious.

See, should anyone find the plants, they don't have anyone to link to them, so the worst case scenario (if I'm careful) is just that they get stolen/confiscated. If I can take care of the plants at night, I feel like it should work out okay. Has anyone tried this?? Does this sound like a good idea??