Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to deal with a bad couchsurfing guest [title] Set your house rules. [step] Before your guest arrives, make sure that you've created a set of house rules. [substeps] Most of the time, guests don't intend to be rude or misbehave.

Ending1: They simply don't know the rules, limitations, and culture that exists in the place they're staying. Make sure that you let your guest know the guidelines that are in place in your house. Ending2: They may just want to meet, listen, and take a look around, but misbehaving on their behalf can sometimes be avoided. Establish by being clear and firm that your home isn't for badmouthing guests. Ending3: Rule-breaking is usually one of the best ways to filter out any negative reactions from your guest. It's often done because the guest arrives feeling insecure or let go of previous experiences. Ending4: They are simply doing what you want them to do. Therefore, it's helpful to know what your house rules will be.

Answer format: ending1/ending2/ending3/ending4