you know what ShowOfHands - perhaps BetaDad has had the same experience as me with regards to the way of doing things?
I know that the mother of the boy I mentioned earlier in the thread has chosen Kohn's methods - I remember her raving about the book at toddler group years ago. Her little boy was a handful then, but I thought - hey you know what - we're all different if it works for you fab.
Despite attending the same school as my DS1 (they're in the same year) they didn't really "cross paths" much again until the end of Yr2 which is how he ended up being invited to DS1's birthday party.
It was a battle from the start to get him to do a single thing I asked of him - it was worse than my DS3 is now (at 23 months!) and totally ruined the afternoon for everyone else as we put up with his sulks.
And before you say - well maybe he has SN which affect his behaviour - no it definitely wasn't that - the one child at the party who does have SN (Aspergers) was absolutely fine.
I discovered after the event that the boys own family (2 Aunties with 4 children of their own between them one of whom I'm very good friends ) no longer invite him to their DC's parties because of his behaviour and haven't' done for several years!
Obviously I hope that this is an example of positive parenting gone badly wrong - but when it's a known example (to me) of how badly it can turn out then it does make you rather cynical of the whole approach.
I must add - my own children are no angels, but the 2 that are old enough to go on "playdates" without me being there have been invited back for repeat ones - so I can only guess that they're not too bad when they're there.
That boy will never ever set foot in my house again, and that's a view which until the 20th September last year I vowed I would never take with the friends of my DC. I always said I would take the same approach to friendships as my parents did.......you can be friends with whoever you want, but don't let them influence your behaviour - otherwise you suffer the consequences.