Male plants have one purpose and one purpose only...to pollinate females. In that way they are much like humans...but that is a different topic LOL!!! Some keep them or harvest the pollen for cross-breeding. But in general herbicide is the way most go..especially if there are females present. If you have other plants...mist the grow area and the plant down, put a trash bag over him, remove him from the grow area, hack him, take a shower before going in your grow area. it just takes one spore and one pistil to literally fuck your garden.