There I was; peacefully picking berries when this very rude Graydwarf sneaks up behind me and starts attacking. So ... what is a person to do, but turn around and give him a taste of my iron mace; boom no more Graydwarf and err... no more berry bush

OK a single berry bush is no big deal when they are most everywhere, but a berry bush that is close to your main base and you regularly go there to harvest begs the question? should you move away from the berry bush before using your mace on the Graydwarf and smashing him into little pieces? If the bush respawns anyway, why waste the move?