I'm not goin' to do things wot's wrong—low, dirty tricks—so I ain't.
“And before Ritter plays some more of his dirty tricks,” added Andy.
None of us mean to be fixed by any more of your dirty tricks.'
Haven't you always chosen to hang on to them and join in their dirty tricks?
Explanations, if necessary, can follow later, but one has to take no chances with Fritz and all ...