Yeah we've found out the hard way. I started a job in June last year across the country and they came to help with the kids. Basically, all of our issues were prior to this but we hadn't dealt with them properly and they festered while I was away hence why I'm here now. I came home in November when my wife dropped part one of the bomb but my parents hung around. They left for a two week period in January and things were good, hence my optimism, though I did manage to mess things up in this time and we've been in this position since.
Last week I asked them to leave. They have a motorhome so Dad has had to spend a bit of time getting it back up to scratch and my wife and I have been fine with that. They'll come back for a couple of days mid-March and then we won't see them again until my brother's wedding next year.
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014