What???? You're saying "No more cake?" Wait a second. I just used my sign! You're supposed to give me what I asked for RIGHT AWAY! Didn't you hear that speech therapist about "reinforcing" my signs!?? I'm signing "MORE." I don't care that I've eaten three pieces. I just used the sign. You are absolutely obligated to provide another treat until *I* decide I'm done. Waah!