I had someone vaping, feet on the chair and invalid ticket to exit the station. I mentioned that smoking is not allowed in the network and asked politely to remove his feet off the seat as it’s unpleasant for other users, explained that his ticket is not valid to exit the station but used my discretion to allow the customer to exit the station. The homeless one is a bit tricky but it’s good you mentioned btp, and I hope you allowed the homeless person exit the station to and explaining to them that they need a valid to travel on the network. I don’t really know where it went wrong but at least you got the experience so you knew what to do next time. Don’t worry too much I’m sure next time you’ll get the job offer just don’t lose hope you’ll be fine