Sorry but forgot to add, that I have known several people who got DUI's but they didn't travel down that road again as they learned their lesson. They only excuse Peggy can have had is............ fill in the blank.
Fool me once, shame on you, fool me twice, shame on me.
Being totally drunk twice to have the police involved, indicated a serious emotional problem that she needs to get serious, about curing herself.
I agree with BTK. It's
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).