I sometimes like to dress up like a young businessman and walk into a five-star hotel's dining room and eat the complimentary breakfast
Why would you dress up like a businessman and do those things?
To experience the feeling of being part of the higher class.
It's normal to want more from life. But, lying to get something for free, even if it is just a breakfast at a hotel, is still wrong. Rather than investing the time into pretending to be someone else, put that time towards working on educating yourself to really become that person.
I'm going to find employees and tell them I'm a manager and demand free stuff.
I don't think you should be lying to get free things anymore. It's just wrong and could get you in a lot of trouble.