Dismantled his room? Check.
Took out every toy he owns? Check.
Nicked Emma's baskets? Check.
Is exceptionally proud of his edifice? Check.
'Stand back, mama, don't wreck my tower!'
We can deduce that:
A) Ben REALLY doesn't want to go to bed, and
B) the (engineering) force is strong with this one.
xo, Sonja