Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to not be scared of the airplane toilet [title] Get used to the sound of the airplane toilet. [step] The sound of airplane toilets is the part that scares most people. About it a day before your flight, try listening to airplane toilet flushing noises via youtube.

Ending1: It will get you used to the sound. [title] Try to avoid using the airplane toilet. Ending2: Once you feel comfortable (and comfortable in front of your flight companions), try to imitate the manner in which the toilet is flushing. [substeps] You may not like it at first. Ending3: For most people, the noise became audible the day before your flight. This can happen before or just the day before the last flight. Ending4: The noise will attract you to the toilet as soon as the flight is up, and you will prepare yourself for more frightening and unpleasant moments with the toilet flushing. [title] Take a walk around the airplane bathroom.

Answer format: ending1/ending2/ending3/ending4