Mice
On Saturday, the mouth with ears found and killed a mouse, then spent the next couple of hours sitting in front of the side basement door, waiting for a little something to pop up.
This evening, I came home from work, and went upstairs to try and finish helping a friend debug a nasty mssql+odbc+php4 website problem, and halfway up the stairs what should I find but a dead mouse. Amazingly, it turns out that hunting and killing fuzzy duck fingerpuppets is actually good for something.
Perhaps this is what's making the stupid cat throw up approximately a dozen times a day.