. . .when you have two stalker cats.
From these perches, TheAnnabelle and TheDexter can keep an eye on what's going on while making sure their fuzzy little paws and their fuzzy little tails don't get stepped on. Plus, it has the added advantage (in their opinion) of allowing them the fastest access to the food dish, drip drips, or scratchies (all the reasons they really stalk us).