Oleg Volk
Moderator Emeritus
Because there was just one riot.
The often cited "One Riot, One Ranger" appears to be based on several statements attributed to Captain McDonald by Albert Bigelow Paine in his classic book, Captain Bill McDonald: Texas Ranger. When sent to Dallas to prevent a scheduled prize-fight, McDonald supposedly was greeted at the train station by the city's anxious mayor, who asked: "Where are the others?"
To that, McDonald is said to have replied, "Hell! ain't I enough? There's only one prize-fight!"