Injured hair

"Alysse, what happened to your hand?"
Alysse thought I was talking about her hair. "Oh...nothing, I just haven't brushed it this morning?"
Confused silence as anni wonders why she had to brush a scar. Alysse wonders why anni asked such a question about her hair.
"Oh, it just looks injured," anni said.
Another confused silence.
"What did you say?"
"It looks like you've injured it."
Confused silence as Alysse wonders why she has injured hair, and anni wonders whether that was the wrong question to ask about her hand.
"OH, you mean my HAND!" suddenly it clicks and the car becomes a scream of laughter.