Client: The IT department at our headquarters has reviewed your report and insists that you must include a dual ISP failover setup.

-- At the address of your new offices? Over fiber? That doesn’t make any sense.

Client: Look "kid", we’re a big corporation with offices all over the world, we know exactly what we're doing and what we need. If you're not capable of delivering, we have no problem finding someone who is.

-- (5 seconds pause) No problem. It’s been a pleasure working with you.

Now let’s wait and see how long it takes them to realize that in the part of the city where they’ve chosen to open the branch, there’s only one ISP with its own infrastructure, and all the others piggyback on that same one.