I suspect severe dual personality disorder. I kid of course.
Moving on, Crit fishing with a staff isn't really viable and I can't think of any good monk weapons to do the job on that although there's probably an exotic one somewhere, a trip build works but is frankly still a step down from most other martials doing the same thing although with maneuver master it can work I guess, it does however run into the same issue as all such builds do where untrip-able enemies make you very sad.
Also given how using a 2 handed weapon to flurry works(ie. you can do so although you only get 1x your strength bonus) there are no mechanical advantages to using a staff over say a temple sword for a monk.
Imagination is wonderful but in Pathfinder imagination isn't quite as critical to having a strong character as research is, however it is quite critical in how fun a character can be to play.
That all being said it's important to know what you want as far as character strength before we make definite suggestions, if you're not aiming for hyper min maxed it's very possible to have fun with a staff weilding monk. I guess what it really comes down to is what is your character vision? Are you looking for a kung fu movie staff weilder or something like a western monk/priest like Friar Tuck or something else?