she sounds a right cow, I hate people saying you cant do this, you cant do that, says who....the flower god. I dont think there are any rules in floristry, I think there are guidelines but no rules. I done a limited arr. one time and my boss at the time said "you cant do that, its not adhearing to the rules", because I used 4 flowers. She made me put another one in just to make her happy and it did nothing for the arrangement.