customers slide back toward the doors upon catching a full mug, and disappear through the doors if they are close enough. if not, they stop after a certain distance, consume the drink, and resume their advance while sliding the empty mug back toward the keg. customers occasionally leave tips on the bar, which the player can pick up for bonus points. collecting a tip causes a group of female dancers to appear for a few seconds, distracting a portion of the customers so that they will stop advancing. however, distracted customers cannot catch drinks, and any customers who are either drinking or being pushed back at the start of the dancers' show will never be distracted.