Box idea good or should I trash it

I am thinking about building a single or duble veg/flowering box for outside use I was going to use a cardboard box with two of the sides cut out and plastic stretched over them and plastic on the top so sun can pennatrate and people and porkchoppers can't see them does this sound like a good idea plz let me know

not a good idea. a few problems; if only 2 sides and the top are transparent enough light wont get in, on hot days all the sun beating off of that would make it way too hot. you seem woried about cops in the sky, dont be there not looking for one plant in the woods, they want to find the fields of green.

if you had an idea for an indoor bow with cfls it would be a better idea