The ambush looks mean, but it usually starts as play-predation aimed at the one moment your other cat cannot avoid. As she leaves the litter tray, she is vulnerable in a way she is at no other time. She has been focused on toileting, her exit path is fixed and predictable, and she steps out low and distracted into a doorway or gap where a waiting cat can launch at a moving target. For the ambusher, that doorway delivers a perfect rehearsal: crouch, watch, pounce, chase. Each successful ambush teaches the ambusher to wait there again, and teaches her to dread the tray.
Why That Exit Is Such a Magnet
Cats learn routines quickly, and hers is easy to memorize. She uses the tray at roughly similar times, often after meals or naps, and she must leave the way she entered if the tray sits in a corner, a closet, or a covered box with one opening. The ambusher does not need to guard the tray all day. Waiting nearby during her likely windows is enough, and movement at the exit triggers the pounce before any social judgment catches up.
Take the pattern seriously even when no one is injured. If she starts avoiding the tray, holding on too long, or toileting beside it, the ambush has become a welfare problem for her, not just rough play. Hissing, fur pulling, or a chase that corners her means the tension runs deeper than play, and the cats need separation and a gradual reintroduction.
Change the Geography First
Move trays so no cat has to leave through a single predictable exit past a waiting housemate. Choose open trays in spots with clear sight lines, where she can see the room before she steps out, and more than one exit route she can take if the ambusher is nearby. Avoid covered boxes wedged into corners, trays inside small closets, and any setup where a barrier, door, or furniture creates a blind bottleneck at the exit. A tray inside a room with the door held open, or near a second gap she can slip through, rewrites the whole ambush map.
Give her a real choice of trays as well. Common guidance is one tray per cat plus a spare, placed in separate, quiet locations rather than lined up side by side, so the ambusher cannot watch every exit at once.
Drain the Hunter and Protect Her Routine
Geography works faster when the ambusher arrives at her tray times already spent. Schedule a vigorous interactive play session, with a wand toy that mimics hunting and ends with a small meal or treat, shortly before the times she usually visits the tray. Evening is often the key window, since many cats toilet and prowl after dark. Play in a different room from her tray, so the ambusher's excitement and attention anchor away from her exit, and put the wand away afterward so the game has a clear end.
Never punish either cat for an ambush. Shouting, spraying water, or scolding the ambusher raises stress around the tray for her as well, and punishment after the fact teaches neither cat a new route or a new game. If an ambush starts, interrupt calmly with a tossed toy away from the tray, then let her leave by the other route without fuss. Note the time and place each time it happens for a week, because the log usually reveals one tray and one time window doing most of the damage.
This plan needs people power on a schedule. In the household plan, Noah runs the evening wand session in the living room, Elena scoops and checks each tray's exits every morning, and both write down any ambush with its time and location so placement changes follow evidence.
Follow-through is easier when KinsLe keeps those notes visible at home, because the Care Teams assignments give the play session, the tray checks, and the ambush log to named people who can see what remains undone.