Dear Ben,
Your spelling sucks, your grammar's awful, you can't land for toffee, and you really shouldn't be posting with fewer than 5000 hrs command on heavies, but...
...on a serious note, given that the bloke was paying to be there, not employed to be there, should he then have been told: 'we need to chop you or give you more training - if it's more training, then you'll have to pay'?
Surely he was just a customer, not an employee?