It's a male flower.
Males do develop some potency. I think it peaks in early flowering which would be now. So it's worth trying to do something with it if you don't have any stash. I haven't smoked leaves since the 70's. They are kinda nasty compared to bud. I have heard that soaking leaves in water improves the smoke. In any case you want that dog out of your grow op before he fucks all your females. You know how guys are
You could snip a branch or two with male flowers, stick them in water and put them on a window sill till they ripen and collect the pollen to make some seeds from your girls.