Shias and Sunnis, how do they interact and pray together in Mecca?

Shi’a is the second largest denomination of the religion of Islam. The main one is the Sunni, my question came when I found that the Sunni are the majority in Saudi Arabia, and therefore Mecca, the thing is, how do they deal with their differences when the Shi’a go to Mecca? Are the Shia in danger sometimes? Any restrictions at all, or do they have an implied truce when Shi’as are in Mecca?

Because there are differences on how they pray:
http://www.islamfortoday.com/shia.htm

How do they coordinate when they have to pray in Mecca?

Apparently

tend to make the haj in separate groups:

The rituals particular to the Haj are different from ordinary prayers, and I think Shi`as and Sunnis perform them in the same way.

Well, I’ve never been to Mecca but my understanding is that the Sunnis require the Shia to pray in an othodox manner. I’m basing this on the complaints of several Shias I’ve met who complained most bittlerly that “the Sunnis won’t even let us pray properly in Mecca!”
Take that FWIW. I do know there have been quite a few squabbles between Shia and Sunni in Mecca over the years.

Regards

Testy

Well, even though Saudi Arabia “hosts/owns” both Mecca and Medina, it is still a super-majority Sunni state. So I would expect a Sunni orientation in Islamic rituals conducted in Saudi Arabia, including the Hajj in Medina.

The differences in procedure are so minor that a Shi‘ite can easily pray behind a Sunni imam, and vice versa. The actual sequence of events in the prayer is exactly the same for both types. Even if an individual does variations from the rest of the congregation, it won’t affect how they all track together. The tracking is not a problem. In fact, it happens every day in mosques in different countries, that a Sunni can just walk into a Shi‘ite mosque and pray, or vice versa, and nobody will care. It’s only in certain regions where sectarianism has gone crazy and violent, like Pakistan, that it becomes a problem for political reasons.

Shi‘ism follows one school of Islamic jurisprudence, but Sunnism has four different schools. There is as much variation amongst the four Sunni schools as any of them has with the Shi‘ite one. The five schools are just not that different from one another. What separates the Shi‘ites and Sunnis is more a matter of religious politics than law. The only legal controversies between Shi‘ism and Sunnism are a few issues like mut‘ah marriage that happen to occur only in the Shi‘ite school of law.

Well, Saudi Arabia being an extreme fundamentalist center of religious Sunni politics is bound to affect the relation then. However, it is hard to find accurate information from inside Mecca, looking elsewhere in Saudi Arabia one can see the restrictions imposed:

In July 31, 1987, pilgrims from Iran rioted in Mecca causing the deaths of over 400 people, it was attributed to Shia and Sunny differences, but there was very little I found regarding that incident, only that it was mentioned that Sunni and Shia relations in Mecca were stressed more after that.

Two schools. Ja’fari and Zaidi. And, sort of off topic, but the differences between the Sunni and Shi’ite schools of jurisprudence can be significant in some matters.