Don't let the doom and gloom merchants tell you there's no building going on. 'The buyers of great presents' gave the lads some lovely blocks for Christmas which were very well received. Roo has gone from building towers to quite elaborate structures such as this one which I believe is for the moon buggy.
He does get upset with baby budda, whose main contribution seems to be health and safety inspection which involves demolishing any building which he deems unstable. But even he has got bitten by the building bug as the other picture shows. He likes to applaud his own efforts, and who can blame him?