I was going to suggest the spray bottle of water too! lol!!!
Our's know they're not suppose to be on the counters table, etc, and will usually jump down quick if we just hiss at them. lol!!!
My tubby cat Blu also knows she's not suppose to be on a quilt when it's on the frame, and will turn her head away if I see her. Apparently thinking if she can't see me, I can't see her! lol!!! I've been trying to remember to get a spray bottle for her, for this.