I hope to see new rules that pax have to leave deposit if we are
told to wait.
Some pax would understand and gladly put a deposit.
Some pax would scream at you why you dont trust them.
When pax has no intention to cheat, they will gladly leave some
deposit. When they have the intention to cheat, they will
have every ways to refuse paying deposits.
Speaking to another TD while in taxi queue, he suggested that if
the pax has no money, asking them to place his mobile is a better
option than placing his bag, identity card etc..