Damnit! Stupid Squirrels!!!!!!!!!!!!!!!!

this is really dumb, but I'm upset. squirrels have attacked my sunflowers that have not even bloomed yet. sunflowers are my biggest joy at the end of summer. these came from seed that I planted in May. I woke up this morning to find 3 large ones bent over and one, not even bloomed yet, with the head taken off. UGHH!! I am so upset. I don't know what to do. the ones that are bent will still live and bloom. I'm just upset that there is nothing I can do about this, aside from standing guard in the early morning. mother nature is a bitch! I guess squirrels have to eat too. I just don't know what to do about it. :(