Also, the "special options" for humorous Hawke suck. Crying "Fire!" is a good one, but other than that, nothing worthwhile. In contrast, Diplomatic Hawke is fairly good at settling some disputes, and Aggressive Hawke can really get people to shut up and do things for him/her.
The fire option is funnier with Merrill, since she totally blows the entire Bavarian Fire Drill you nearly pulled off. "Yes, Merrill, it was a trick..."
I also liked that moment because it shows that Aveline is probaly the only person that truly understands how sassy Hawke is. The others either get annoyed, ignore you or laugh at your jokes, but not Aveline, she is the one that truly understands Hawke, that knows what makes you thick.
Which is another reason I never understand how she ended up with that wet blanket known as Donnic, since scenes like that show clearly Aveline why has far more of a connection with Hawke. Reminds me of that line of dialogue in Act 1 where she admits to having sometimes camped on their doorstep to make sure Hawke's family was safe. Dammit, why couldn't we romance her?
Like how I approach renegon Shepard, my Hawke is sarcastic on average, but is diplomatic or aggressive when it feels appropriate. Going full humor in every dialogue option would be pretty ridiculous.
Yeah, I never go sarcastic during serious moments, I'm usually either diplomatic when people die or I'm trying to be consoling, or aggressive when someone is being threatened or Hawke's button is really being pushed. The sarcastic dialogue during Sameus' death, as well as the automatic dialogue when Hawke tells Emeric about the mage killed by Quention, makes me want to seriously punch them.