An orc with hollow, dead eyes and jaundiced skin charges to 60N100E and attacks. The orc is too far away for the tiny ekrat to use its readied action. Since the ekrat already moved, it cannot ready a 5 foot step into the orc's square and attack.
If the catwoman can move fast enough to charge the orc, she will. If she has a missile weapon, she will step out at 10N0E and fire. If she does not have a missile weapon, she will move to 60N15E and ready an attack if the orc gets in range. Is that chaotic enough for you?
Good, because I do not know what a catwoman can do.
A three-foot high humanoid steps out and moves to 10N100E. It has chitinous skin, compound eyes, and two antennae waving from its forehead. It is clad in studded leather armor, has a scabbard at its side, and a shield on its back. It wields a light crossbow, which it fires at catwoman. Bugboy rolls a 16-2=14 for long range. If that hits, catwoman takes 5 points of damage.