I can crash OS X... all I have to do is leave Carracho running. Carracho crashes all the time... but sometimes If I leave it running for all day I will get errors that fill the screen with system message windows And it cant recover. The screen freazes and I cant do anything be restart. At time I can try to log out but that fails do to carracho and other running applications not quiting. I have to force quit all of them... and sometimes that wont work. But hey... Carracho is cool and its free. I guess I cant complain too much.