I'll describe the situation, then if anyone can share their thoughts of be grateful!
It was DS2's 'welcoming meal' at the weekend (we don't do christenings). My parents, PILs, my DB+SIL, three friends - deliberately small.
PILs got there first, sat in middle of the long table. MIL spent the whole meal colouring in a child's menu both on her own and with DS1. FIL sat opposite DH only speaking when spoken to. My DM and DF conversed with everyone and chatted to PIL, who asked zero questions about them and had faces like smacked arses the whole time.
It didn't spoil things exactly, but we hadn't wanted to do the meal at all, because MIL has form for expecting to be the centre of attention, having to control situations etc.
What can be done about this kind of behaviour? or do we just put up with it? They're 70 so unlikely to change their ways. It seems unfair that everyone else has to do the hard work in this situation.