MIL and FIL are organizing a family reunion for DH's family. We live in the same town as them so we will probably be going to most of the events they have organized and I have offered to help cool. Yesterday, I got a voicemail from MIL sayings that DH's aunt, uncle and 3 cousins and one of the cousin's SO will be staying with us for the week of the reunion. My first thought was that DH had offered to host someone without talking to me so I called him and he said this was the first he has heard of any of it. I have no interest in hosting 6 people for a week. We have a 4 bedroom home and we have 5 kids so while we are comfortable in our home (pretty big bedrooms) adding another 6 people would be a nightmare. DH called MIL to ask her what was going on and to tell her that we had NOT offered to host anyone, nor did we plan to. She said "well I already told them they could stay with ya'll, everyone else who lives in town is hosting, why can't ya'll?" He said "well we have 5 kids, no one else has anything close to that and we didn't offer, you offered them a place to stay so you can provide it". The truth is is that coupled with the cost of feeding and housing 6 extra people for a week plus the inconvenience of it is just too much for us. 3 of our kids will be in school at that time , they need to be able to have good nights sleep, not be moved around to make room for guests.Still MIL said we are being selfish for not "helping out". What kind of person invites 6 people to stay at someone else's house without even asking them?