I would recommend rewriting this like so:

```
describe 'post /event/:id/quests' do
  it "allows a guest to b the event" do
    event = Event.create(event_attributes) # Not sure what the attributes are
    post "/events/#{event.id/guests", {
      :name => "Michael",
      :email => "michael@example.com", #example.com is the only domain that should be in your specifications,
      :rsvp => false
    }

    event.reload
    last_guest = event.guests.last
    expect(last_guest.name).to eq('Michael')
    expect(last_guest.email).to eq('michael@example.com')
    #  ... etc ...
  end
end
```

This allows you to reference the event or guest without making the same call multiple times.