Ok I see what your saying. And I agree. It does take a good amount of light to mess them up. But, some people let a crap load of light in there grow room. Plus I think indoors is a little more sensative to light in the dark period. Do to the sun being so much more powerful I think indoor light makes a MJ plant a little more sensitive to this. But barely. My hermies were not from a light leak but from unstable genes.