The idea that everything in existence was created by the sneeze of a random being is an interesting concept, but it's important to note that it falls into the realm of speculation and is not supported by scientific evidence. Scientific explanations, such as the Big Bang theory, are based on extensive observations, mathematical models, and empirical evidence.
The Big Bang theory describes the rapid expansion of space and the subsequent development of the universe from an extremely hot and dense state. It is not similar to a sneeze in the way you described. The Big Bang was not caused by a sneeze or any known biological process. It is a scientific model that attempts to explain the early origins and subsequent evolution of the universe based on the available evidence.
While it can be fun and thought-provoking to explore unconventional ideas, it's important to distinguish between scientific theories supported by evidence and speculative ideas that lack empirical foundation. The scientific community continually works to refine and expand our understanding of the universe through rigorous research and experimentation.