Sleeping with the window closed tonight

Was about to go to bed with my window open so I could get some fresh Dolomite air until I saw the praying mantis on the inside of what one might call a "screen". Yes, a praying mantis much like Zorak from Space Ghost Coast to Coast, only not animated. He would have been much cuter (maybe) if he had been. By the way, anyone know if they can hurt humans?