“Patience is a wonderful gift, and sadly one I don’t have.” (pleasant) 

(firm, gentle) “Really now, love. I understand if you’re upset and frustrated with your situation, but you shouldn’t allow that to be an excuse to behave in such a way. Yet-to-be, you are still an Ermengild and you need to attend your required lessons properly.”  

(in a scolding manner) “Owen, I mean it. Be nice.”