I may have exaggerated my reply, but I wouldn't sit and wait idly by for the police to arrive, that's for sure.
As for your question, the uncle's family had an ongoing feud with them with his eldest son molesting both her children. Taking that into an account plus the fact (or fiction) that he laughed when the mom asked if he raped his daughter, I can see her snapping very easily.
Besides, kinda late to ask what ifs now, isn't it?
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Maturity is knowing you were an idiot in the past. Wisdom is knowing that you'll be an idiot in the future. Common sense is knowing that you should try not to be an idiot now. - J. Jacques
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