Hi Rob. Have you watched the video? It clearly shows a pair of reprobates sneaking a jackery unit into a bar and hiding the fact its plugged in. They relish in the fact the are stealing electricity and actually encourage theft of the electricity. Nowhere in the video did it state they had asked permission to charge a ?kW portable power station. Its only when they were challenged in the comments did they state they had asked for permission and the video was for "entertainment purposes" So, yes, I think he is a liar. Maybe I'm a skeptic, but he could have asked if he could charge his phone or laptop and was told that would be fine, but he omitted to mention that he was going to charge a ?kW portable power station.
But! I don't care if he stole electricity or if he paid £50 for the convenience, the video gives the viewer the idea that its OK, to go into a pub with ?kW portable power station and steal electricity. If the viewer does not read the comments...or indeed can't read...the video on its own shows, if nothing else, a very bad mannered approach to charging a power station. Personally, I wouldn't charge a phone in a public place without asking. Its basic manners.
Now, if the cretin had put up a video showing him going into a pub and asking if he could put a charge into his power station and be willing to pay to charge it, that would be, to me, the proper and correct procedure. He could be lucky and get told to go knock himself out and run a cable out to his van and his girlfriends van. But doing as they suggest in the video is plainly wrong.