Cats may have a reputation for being lazy but don’t let that deceive you. Yes, felines may sleep for 15 hours a day sometimes, but some of them use their waking hours for the greater good. The photos below depict 20 cute kittens, caught right in the middle of their busy workdays. Some of these are serious portraits, honoring cats who donated blood while others are funny and playful shots like that of a “repair kitty” who fell asleep inside a toolbox. Scroll down to see the most adorable job holders ever!