Had a suspect said "don't cuff me, I will go and not cause any trouble". I cuffed (S&W cuffs) him behind his back and he broke them, a fellow officer said here use my peerless cuffs. I did and he broke them too.

We had a department rule "No prisoners taken to the station with out cuffs." Sgt. saw me taking him in the back door and he chewed me out for not cuffing him. I told the Sgt. that he was cuffed, the Sgt. asked "what kind of fool I thought he was"? Prisoner laughed, pulled up his sleeves and showed him the broken cuffs! I suggested the Sgt try his cuffs (we had to buy our own in those days), Sgt declined. Got to take the suspect to jail without cuffs, but got a letter of reprimand out of the deal. After all Rules are Rules!! Appealed the reprimand and won!