I've spoken about this before here, but my daughter and I were camp counselors years ago and there was a counselor who slapped the assistant director in the face and then dragged her nails on her. She later asked my daughter and me for rush recs!!
We no-recced her so fast, with details. The rec chairman of my daughter's group called our house for her but she wasn't there. She asked me to thank her because they had run a police check on the girl and she had a record for assault. (I guess the Scouts didn't check.)
Epilogue: the girl didn't get a bid and freaked out and the college president pressured the only group who didn't make quota to take her. A year later, another daughter was trying out for the dance line at that college and we asked one of the current members if they knew Mean Girl. She said yep, her group had been forced to pledge her, and she was kicked out a few weeks later for attacking another member.
And that, folks, is why we need no-recs.