All of our friends and family know that they have to call first before turning up......but the in laws don't respect this wish.
Last Wednesday evening, DH had an appointment to go to, and DS and I were off to Zumba. While we were getting ready, the in laws just rocked up at the front door.
We let them in but told them we were about to leave for the evening. Their response was "Oh we'll just wait here until you get back then" !!
We told them we'd be hours and so they got cranky, and left when we did.
DH popped around their house on Monday after work and they got right up him about it. They are difficult people at the best of times, so he basically told them to respect our privacy, call in future, and if they can't do that, then we won't make any effort to see them at all.....ever.