Has anyone ever bought tickets off of someone in-person without using cash (paper money)? I ask because I don't have tickets for Saturday, and if we win tonight and tomorrow, I'll be in the market for Championship tickets. If that happens, I will presumably be shoulder-to-shoulder with people on the way out of the arena with tickets they won't be using. Since I don't carry much cash, I am wondering how the logistics might work if I want to buy tickets off such a person. (Venmo? Paypal? Issues with ticket transfer (if tickets are electronic)?)
Any advice from experience would be appreciated.