Salem

So I just went to punish a criminal at the stocks by trying to throw tomatoes at him and couldn't quite figure it out. I tried wielding the tomato in my hand, right-clicking the criminal, even using the shoot attack trying to use the tomatoes as ammo. I already have the sanctioned mortification skill. Is there something I am missing? How do I throw my tomatoes at the filthy criminals?

right click the stock

its all so obvious now...