How do you deal with the 'it wasn't me, it was the imaginary friend who drew on the walls/knock something over ect etc etc?

[panicpants]

Ds, 3.6, blames EVERYTHING, from accidents to doing anything naughty, on the 'naughty badger'. No idea where the naughty badger name came from but it has stuck. And if ds sees something like a ripped piece of paper (or anything that is nothing to do with him) he says 'oh look the naughty badger must have done that'.

But he will also blame the 'naughty badger' on things he has done, both accidents, and things which are in fact naughty.

Any advice on how to deal with it?

In this house we have Victorian Mum & Dad who are unreasonable and just tell him off. DH says do you want me to turn into Victorian Dad and DS tidy's up saying 'no'
This helps us deal with the woolly problems that our DS springs on us.
There is a photo company at Nursery that will take photo of kids in Victorian costume. I'm going to ask them to take photo's of our DS as a chimney sweep. We often tell him we're going to send him up the chimney. Two or three (or four if you count granny) can play imaginary games. Have a go. Tell me the results?

haha, we just say "well, I hope that naughty badger knows that if he does X again then X will happen, and if anyone else does it then X will happen to them too" said with a knowing look
ds knows that I know it's him, and he knows that my threat applies to him

Yes, we do the same as you already thisisyesterday.

Was wondering if anyone had another approach?