Factor 1: I have a pair of slippers that look like giant hairy hairy feet, I sometimes refer to them as my 'Yeti slippers'. Man, I love these things, I've had them for probably a good 8 years or so.
Factor 2: my kittens were not properly weaned, and like to get comfy with very shaggy things and start sucking on them.
So, my cats get into the bedroom this morning, and while I'm reading LJ posts, I hear this little sound coming from behind me to the right, and I turn around to see Socrates (my cat, not the dead philosopher) snuggled up with my slipper, attempting to nurse or something. Without stopping to think about it, I yell:
"Dammit, dude, stop sucking on my feet!"