Apparently we have a precedence: see ConsumerCuratorTest.java:

```
    public void getGuestConsumerSharedId() throws Exception {
        Consumer hConsumer1 = new Consumer("hostConsumer1", "testUser", owner, ct);
        consumerCurator.create(hConsumer1);
        ...
        // This can happen so fast the consumers end up with the same update time,
        // it's 5 milliseconds, deal with it.
        Thread.sleep(5);
```