They are the customer, you, the supplier.
After a meeting at their premise (F&B), instead of offering, you muscled your way to a free meal. They politely obliged you. But you didn't sense the silent resentment when the minute they sat you down a table, they excused themselves from your company, citing work (at the end of a work day!?!). You still went ahead to order a main, a side & desert!
Can you imagine what's going to reflect on their ENT? TREAT TO A SUPPLIER!
And mind you, it's not that you can't afford it. You have a very healthy account, nice home & expensive car! Why?