It’s very easy to fall prey to misunderstandings in your dealings with people (usually boys and young men) who offer their services as guides, helpers or “facilitators” of any kind. You should absolutely never assume anything is being done out of simple kindness. It may well be, but if it isn’t you must expect to pay something. If you have any suspicion, it’s best to deal with the matter head-on at an early stage and agree a price – or more rarely apologize for the offence caused. What you must never do, as when bargaining, is enter into an unspoken contract and then break it by refusing to pay for the service. If you’re being bugged by someone whose help you don’t need, just let them know you can’t pay anything for their trouble. It may not make you a friend, but it always works and it’s better than a row and recriminations.