How my son gets me to build him legos

My seven year old son and his friend wanted to play legos.  I thought "Hey that sounds great! There's no console or screen involved, they have to use their hands and brains...hell yes lets do it!"  So I get out the legos and sit down to build with the kids.  After the average attention span of a seven year old elapses they get bored and wander off to play Minecraft. So do I get up and get to work?  Nope!  I had many other things that needed to be done, but I kept building.  I think its a jedi mind trick Henry pulls to get me to make stuff for him.  That trick is basically "Dad, here's some legos" then walking away as my lego ego takes over.

Anyways I like this spaceship.