Q 256: What happens if your familiar is also your mount, and you share a mirror image spell with it? The figures mimicking your actions seems to lead to weirdness. I'm thinking either double images (1d4+X images of you riding your familiar, and 1d4+X images of your familiar bearing you), double images of your familiar only (1d4+X images of you riding your familiar, and 1d4+X images of the familiar running around), or cooperating images (1d4+X images of you, riding 1d4+X images of your familiar), but I've no idea which one is correct.
Q 257: What if someone tries to shoot your familiar mount out from under you, and hits one of its images? Do you wind up with an image of you riding around despite having nothing to ride on?