Depends on the issue. Some are worth fighting others are not. Parent/teach conference no been there done that and realize I am not of any benefit for anyone to be there my opinion to the school, teacher or mom means nothing. Why bother. Dad can fill you in and you can do as you can do at home correctly for the child.
Visitation, well something like child needs to skip do to this so we are now saying will go on such and such day. Well depends on what we have going on. Ok child can not come when suppose to but I am not changing my plans to accomodate especially since we were always told on short notice. If it something she feels she needs to pick about in my home. Well this I will argue. My home, I am the woman of this home therefore my rules stand she has no right to make rules for my home my family. Lastly, if mom calls for an explanation of some sort whatever. Why we did not do this or that or why we did something I will not even hear of it nor discuss it if she has an issue take it up w/ someone else maybe womeone that cares. If she feels child needs something and would like us to help, I consider what it is. Think of the childs best interest and need and if we can do it or not.
Please keep in mind that my husband has no conversation w/ ex at all that is a nightmare so I have had to step in and be the more civil. Does not sound like it, but really I am. She is really nasty and selfish not to mention controlling. Being that I have to play the same game.
If they could communicate I would probably just step aside and not deal w/ any of it because after it is said and done the step is the least appreciated and really dad has no justice in this system. Dads are really only the cashcow