On Mon, 06 Dec 2004 14:40:21 +0000,

I've had moderate success (effective on 2 of 3 cats) with a squirt gun
loaded with plain water.

For increased effectiveness, add some detergent to the water. It dramatically
increases the 'penetrating power' of the shot; as does a mix of roughly 1 part
isopropyl alcohol to 5 parts water.

I'll remember that if I even have to occupy a house with cats again.
That's not likely (unless it's a BearCat).

Mandatory aviation content: Many cats appear to be aerobatic -- when
hit with a squirt gun they perform a vertical takeoff and and an
immediate Immelman.

- J.O.-