Just back from a week away with dC's, dp and his dd. Every single thing my kids did that wasn't perfect behaviour was jumped on, shouted about, yelled about. Everything his did wrong wasn't even noticed. Even the stuff done exactly the same as mine and just minutes after. I discipline my kids (but obviously not sufficiently to his standards) so he always jumps in, yet if I have a go at his then I'm the bad guy. His other child has been caught in some actual illegal activities earlier this year but it's all been brushed under the carpet.
We don't live together but have been together for a few years.
How can I grow a pair and confront him about the inequality of dealing with the equally shit behaviours?