Bows of apology tend to be deeper and last longer than other types of bow. They tend to occur with frequency during the apology, generally at about 45 degrees with the head lowered and lasting for at least the count of three, sometimes longer. The depth, frequency and duration of the bow increases with the sincerity of the apology and the severity of the offense. Occasionally, in the case of apology and begging, people crouch down like Sujud to show one's absolute submission or extreme regret. This is called Dogeza. Even though Dogeza was previously considered very formal, it is mostly regarded as a contempt for oneself today, so it is not used in an everyday setting. Bows of thanks follow the same pattern. In extreme cases a kneeling bow is performed; this bow is sometimes so deep that the forehead touches the floor. This is called saikeirei (最敬礼), literally "most respectful bow.