How can you be a good sub if you cannot act like a good dom on the command of your dom?! As a good sub it is your responsibility to meet the demands of your dom, may be he like to explore new ideas that you may prop up in his mind to dom, while acting as a dom? or he may like to experience how a sub feels so he may be able to dom better the next time...so be nice and helpful, thats what a nice sub should be like! - my point of view!