How to react to an angry email / argument as a third party I'm finding myself in an uncomfortable position these past couple of days. Our IT/lab manager has been working on a new website to store data that is to be shared with about 11 other institutions, all part of the same project. Our lab is heading the data management and modeling. My adviser is not happy with his progress and has sent him a very "tone-y" email, but has included me and other colleagues in the email as well. At first I thought the conversation was limited to our lab. Now I see the project director and a couple other people are included as well. I came close to replying with something along the lines "Please do not include me in these types of emails" (It's a work in progress!!). The emails have gotten to down right bickering, even childish, and have gone back and forth several times. I'm very surprised at the tone and childish nature of the emails. 

What is a lowly PhD student such as myself to do in this sort of situation? Should I just ignore the messages? Or should I request to be excluded from the conversation? 

P.S. These emails are of some significance to me because of the data. But I don't believe I should be in this conversation.
I would suggest that the proper etiquette here is similar as to how you should behave if you were to witness two people arguing in public. You may listen—the argument is, after all, public—but you probably shouldn't interject unless you are directly addressed. As stated in the comments, this is a very common tactic for raising the stakes in any discussion. This currently isn't your fight... don't get involved unless you want it to become your fight (pro tip: you don't).