Single-minded behavior, purely looking for benefits, judged by the system as a non-potential customer. If not you, then who? It's like going to a restaurant, you pay three bucks for the tea seat fee, enjoy some free appetizers, drink some free tea, relax in the air conditioning, don't order any dishes, and after two hours feel that the small amount you've spent is quite worth it, casually grab some free fruit and leave without paying. Will the boss still treat you next time he sees you? 😃😃