Ignorance is not a bliss for a Profession like Engineering or for that matter one can say for any Profession ignorance is not a bliss. The word ignorance stands for a meaning of lack of knowledge. So If someone is ignorant or having lack of knowledge can never or no way become a proper design Engineer. Only after acquiring a complete knowledge and after verifying it with the previous experts one should aim at making a new and original designs. A perfect design engineer is a ′god′, one can say for all other innocent humans who are going to use the products which are designed by such a designer. Hence the duty of god is to protect and prevent any premature failure of the product designed and to do design with at most sincerity, honesty and kindness. This way only a design engineer must carry out his work. The design engineer should not underestimate a static or a dynamic force or stress and so on.