Stink bugs can´t bite because they do not a mouth. If you annoy them, they might try to stab you with the same sharp proboscis they use to pierce fruit and suck plant juices.
The stinkbug´s ability to emit an odor through holes in its abdomen is a defense mechanism meant to prevent it from being eaten by predators. However, simply handling the bug, injuring it, or attempting to move it can trigger it to release the odor.
DO NOT use bug bombs or dusts to try to rid yourself of stink bugs in attics or wall voids where the vacuum can not go. Stink bug corpses can attract scavenger insects like carpet beetles.