 The cannot intubate, cannot ventilate case is the most dangerous of situations, and being able to foresee, prevent, and prepare for such difficulties is the task of every anesthesiologist. Difficult mask ventilation is predicted by a number of factors, including obesity.1 Appropriate bag-and-mask ventilation necessitates a patent airway. An increased BMI is associated with a reduced posterior airway space behind the tongues base as well as a quick development of hypoxemia from reduced functional residual capacity in improper mask ventilation.1 Proper head and neck positioning to establish the patent airway then is especially important. 