Sooo you have a couple of likely pads...
check lens, put on cap..
secure in bag..
walk over to other room..
see cat in vertical blind/window light..
figure cat will leave as soon as camera gets out...
get camera anyways...
I might get lucky...
Belly down on floor..
sneak around the desk..
Get lens ready..
cat washes with back turned to you..
(mutter about cats)
and sees you.. comes over to say hello..
As you turn camera..
thinking.. NOT the lens!
I'm sure this is a familar scenario to some.... ;D