Some of the early Kryptonite models were susceptible to the "Bic pen" attack.... https://www.youtube.com/watch?v=LahDQ2ZQ3e0 https://www.youtube.com/watch?v=La

Some of the early Kryptonite models were susceptible to the "Bic pen" attack.... https://www.youtube.com/watch?v=LahDQ2ZQ3e0 https://www.youtube.com/watch?v=LahDQ2ZQ3e0 No need for anything fancy like a hydraulis jack or liquid nitrogen.