My husband and Loki are best friends. They are home together all day, they snuggle in the mornings, they play at lunchtime. He teaches Loki tricks while I'm at work and then shows them off when I get home. He still lets me feed him, brush him, and pick up the poop though.
ETA: My dad who would NEVER let me get a dog because they are "animals" loves Loki like a grandchild and calls me to ask about him, even insists I let him babysit him rather than leave him home alone. Also, I think some men have an easier time with a boy yorkie.