This is an awkward one. I feel awful for even posting this.
I really like my friend however I find one her DC extremely difficult to bare.
They are only 3 - but when she brings them round. They constantly scream the whole time they are here - high pitch scream when they can't get what they want. It's that bad that I have a migraine after they leave.
They've broken things in my home, even when I've put them up high to toddler proof my home. They run around and open my fridge and help themselves to food mainly yogurt and spread yogurt into things.
Terrorise my animals and just generally run around screaming.
Now I'm not a monster which I'm sure some of you are thinking - I have DC one whom has SEN so I know not all behaviour can be helped.
But friend just simply makes excuses or laughs and says "yes we usually give in to stop them screaming." And has even told me other people have banned them coming to their home for similar reasons! 
Is there any way I can ask friend not to bring them on future play dates? My DC are friends with their siblings so it makes it very difficult.
I'm just sick of my house being destroyed and having to go lie down in bed after they leave with a couple of codeine!
Or maybe it's just me now my DC are growing up I've forgotten what toddlers are like.
Would I be unreasonable in banning them?