I was testing Drox today. In the game there were 5 races, 4 of which were on great terms with me. But one race who was in last place and had only one planet, didn't like me. So I thought I'd eliminate them from the competition. So I declared war on them. As soon as I did, I lost the game! Turns out I didn't think to check to see that all other races were either allied with him or loved that race, so as soon as I declared war on them, all the other races declared war on me simultaneously. Case closed! wow!