Dang he is a cute lemur. Which is probably a good thing for his well being LOL.
At least your Mals will play with toys. The Sibe/GSD mixes don't really give a crap about toys... Lily has spastic husky zoomies around the house on a pretty regular basis and now Scout sorta joins in even though she still doesn't really get it (she's more GSD). Scout pants all the time and is always coming up and rooting her head under my arm. Lily just comes up and stares me down. Then there is the wrestling on my head when I'm in bed, lol. I would not leave either loose unattended in a yard ever, they'd find some bad way to amuse themselves.