Never mix your Lego sets!

So I found out the kids had taken their Mario and Luigi Lego sets apart. That’s fine... but they threw all the parts in with their main lego pile!
Something about this was bugging me as I thought they'd never be able to find all the specific parts again.
So I set out to build the first one back up again...

Two hours later and I had DK built and felt like i'd turned into a colour sorting algorithm for Lego bricks.. At this point I gave up as the kids were no longer interested in "the boring job".

Hopefully they've learnt as I think they'll now fear me suggested any more Lego sessions...

I might need to spend some evenings putting them back together for my own sanity, especially the due to the little barcode reader tiles!