I see both styles here. Interesting! I have officially given up saying "no" for the rest of April. We'll see how it goes. She doesn't laugh (at me) when I say "no, no screaming" because I have a really serious/blank face on, but part of me doesn't want to stop her from expressing herself, as jvn points out, and it may just be a phase.... so I am not 100% behind my "no, no screaming" discipline.