'it 's all right , ' he said hastily as teppic laid down his fork meaningfully , 'it 's perfectly safe provided every bit of stomach , liver and digestive tract is removed , that 's why it cost so much , there 's no such thing as a second-best blowfish chef , it 's the most expensive food in the world , people write poems about it- ' 'could be a taste explosion , ' muttered teppic , getting a grip on himself .