
Cats. I've never had one for a pet, and I'm not even really sure I ever will (I'm "famously" obsessed with dogs)... but cats are just fine on their own anyway.
Cats rule the night. You see them, lurking around the place - totally active in the neighbourhood, in the wee hours. I always see them, hiding under cars, and just peeping suspiciously at you from their front yards... like they're wondering why you're awake during "their time".
Little kings. Of the night.