Yes, blue throats are one of the most peaceful triggers and humu's are toss-ups, usually not very aggressive. Titans and pineapples are some of the most aggressive triggers. Also, you have the most aggressive type of lion, the volitan. The original poster is looking into getting a dwarf, specifically a fu man chu, one of the least aggressive lions and one of the hardest to try and accept food. There is no way a fu man chu would be aggressive enough to last with those triggers, let alone try to learn to eat frozen foods.