Oh dear John, play fair now and show me a video of that happening to a ultion cylinder or an ABS avocet, I've shown you how your holy grail BS marked insurance approved sash lock can be opened, what you've shown is how poor a basic £10 euro cylinder can be, I've already conceded to you earlier on how bad these are......I've agreed with you but we've moved on from those cheap cylinders but you seem stuck in the past!
Do you want me to post a video on how easy 3 lever sash locks are to open or even a rim lock, how about how to slip a yale lock with some mica cards, heck I've even used a slither of plastic from a coke bottle to open a yale lock, maybe I can show you how to mickey mouse a yale lock that's been double locked, I've mickey moused plenty in my time, if you don't know what that is maybe London locksmiths will explain