Youngest Kiddo and my dad go together like peas and carrots. The boys are great partners. Youngest Kiddo is an eager helper, and my dad is a patient teacher. It's pretty much a guarantee that if you can't find the boy, he's hanging out with my dad.
When dad works on a project, Youngest Kiddo grabs his tool belt, safety goggles, and speed square. Dad always gives him a job to do, and Youngest Kiddo takes it very seriously. The boy is an expert at holding screws and shining the flashlight.
While dad's garage (aka the laboratory) was being built, Youngest Kiddo had a blast hammering nails into scraps of wood and measuring everything in sight.
When the work is done, the boys have no problem relaxing.