Actually.... Back in the Snuggly Duckling, they were throwing Flynn around and tossing him in the air and onto barrels, and then making him roll on the barrel down the path where they were juggling fire... And one guy wound up somersaulting out a window... Shorty got thrown around a lot and Hook kept smacking Big Nose when he was singing about playing the piano...
Singing can be really violent too, if Bookman is that kind of guy you could come out more bruised.