I'm looking for a word to fill in this blank:
“They’re delinquents,” The doctor agrees. “But, don’t worry, we’re finding them, Jannie. You will get the justice you deserve.”
I let out a _______. “Don’t even try to pretend you’re doing this for me, my husband, or anyone else but yourself. You’re just trying to save your own skin."
I'm looking for a specific type of laugh, where it's a scoff that turns into a chuckle. For example, if a mother has a very rambunctious child, and he/she does something that surprises and angers her at the same time, she might do this kind of laugh. Is there a word for this? I don't want to say "dry laugh" or "sarcastic laugh" because there is a bit more too it than those. If there isn't a word for this, is there any other phrases I could use?