Absolutely, yes. Where's your backup plan for when Visa doesn't behave as you expect? It's okay to not have one, but it's also your fault for not having one, and that is the sole reason that the lemonade stand went down.
> Where's your backup plan for when Visa doesn't behave as you expect?
I don’t have (nor have to have) such a plan, I offer X service with Y guarantees paying out Z dollars if I don’t hold up my part of the bargain. In this hypothetical situation if Visa signs up I assumed they wanted to host their marketing website or some low-hanging fruit, it’s not my job to check what they’re using it for (in fact it would be preferable for me not to check, as I’d be seeing unencrypted card numbers and PII otherwise).
The person above who replied to you thinks you're talking about a proverbial lemonade stand taking payments via Visa. That's the misunderstanding.
That aside, I think the example is good. It's a bit like priority inversion in scheduling. With no agreement from the lemonade seller they've suddenly changed greatly in terms of their criticality to some value creation chain.
Absolutely, yes. Where's your backup plan for when Visa doesn't behave as you expect? It's okay to not have one, but it's also your fault for not having one, and that is the sole reason that the lemonade stand went down.