Pimp and Moo know that, as a cat, it is very important to keep an eye out for anything icky, flying or buzzing... and that includes whatever it is that is up there on the ceiling...
Pimp, as you might notice, has way more patience than Moo when it comes to hunting. If there's something up there, he won't sleep all night... just staring and stalking it. I usually pick up him and lift him up so he can swat the ceiling, though, so he can have the satisfaction of getting it! Hehe.
Meanwhile... what exactly was up there?
Thanks goodness for cats. Imagine if I hadn't noticed that thing and he ended up in my bedroom?!?! Eek!