You have got to meet my husband. ; ) I swear, he would have calls at the ICU if even he ends up there. He will have three folders of things to do...and for me to do when he goes. He likes to share his busy-ness with the whole family. He drives us nuts but I love him the way he is.
Tell your husband that he's a lucky guy for finding work that he loves and someone who understands him. Trust me, he's happier than 99.999% of the people walking around counting days until they get to do "nothing."