People often say not to plant seeds from veggies bought in the store because I can end up with unwanted fruit. Why do people say this, and why don't more people try to cross breed veggies through multiple generations to see what sort of crazy veggies we can come up with?
For example: lets say, one year i grow 4 different kinds of gourds.... pumpkin, spaghitti squash, zucchini, and acorn squash. This year i cross-breed pumpkin/zucchini and acorn/spaghetti. next year I plant and cross-breed between the pumpini and spaghetticorn squash. what sorts of exciting veggies would develop on the third year? Is a puzughetticorn squash even possible? Why don't i hear more of this sort of thing happening?