Well, I figure I outta tell ya'll about the only time I ever saw a lawman thumb cock his revolver while on duty...
My old partner and I (I was a young pup then) had arrested a big ol boy for DUI. Put him in the city jail holding cell to sleep it off, when we got a radio call to return to the PD. Turns out this big boy had ripped the commode outta the floor and was standin' in the holding cell, the dripping toilet over his head, water spraying everywhere in the cell. As the drunk was yelling and screaming he was gonna kill us all if we opened the cell door, my partner had me open the cell and he went in, pulling his nickel plated 4 inch Python as he did so, stood at the cell door, thumb cocked it, and pointed it between his eyes. Ron told the dude he was gonna blow his brains all over the cell if he didn't put the crapper down. The big ol dude stood their, looked at Ron holding that Python one handed, arm outstretched like a 1930's police cadet...and decided enough was enough. He put the john down and we cuffed him, and took him to the county jail.....
The county jail staff took a dim view of his behavior, but that is another story...