So if I have this right, a few of you who claim to be either DIR trained or follow DIR diving protocols, are refusing to dive with non DIR divers in recreational dive settings because of the following:
A) They may unexpectently run out of air and pose a danger to you.
B) They dont know how your gear works.
C) You feel that you can not count on anyone else being able or even willing to help you out if you have a problem.
Well, lets look at A first shall we; If you are a good buddy, you should be checking not only your air, but your buddies, at regular intervals. This is especially true if you are diving with a new buddy, as it will help you gauge your allowable bottom time for this and any future dives with this person. You do check your buddies air dont you? If you do this, then a surprise OOA will not happen unless a failure of some piece of equipment occurs.
On to B; Being familiar with every aspect of your gear is not needed. Only how to release your weights if needed, and where is the alternate air source. If you are not doing a pre-dive buddy check, which would cover these points easily, then I suggest you start doing so.
Now for C; By this statement, you are saying that all divers are bad, dangerous, and unreliable, and only DIR trained divers are worthy of your gracing them with your presence under water. Sheesh, with feelings like that about other divers, its no wonder people have a stand off attitude towards some of you. Count yourself in the minority of DIR divers out their, and not the good ones either.