If you sit at the right kind of table with the right kind of things in front of you and the right kind of people behind you and next to you and talking to you, you expect to be waited on. You have a reasonable expectation of service.
You can’t really be held accountable for the situation in which you find yourself, not accountable in the sense that you can be expected to conceive of any other way for things to be. This is how things are; don’t think how to create a different scenario, but how to make the current scenario better.
Besides, you’re entitled.