There is not much I can add on the title without going off topic, just was wondering about it. Any seasoned advice?
Trans fats require a specific process to form. Oil is heated under pressure, and hydrogen gas is injected in the presence of a catalyst. This forces a chemical reaction to occur, resulting in what we call trans fats.
No kitchen is likely to have the ingredients (e.g. hydrogen gas) and equipment necessary for making trans fats. You will not make trans fats by accident in your kitchen through heat alone.