Because of the lack of transit Police, AO's, Police when and where you need them. Cos the public is scared as well to speak up and/or to intervene when agro's enter the Bus and cause havoc. Being allways on alert and anticipation drains your energy. Had enough of being spat on, yelled at, verbally and physically threatened, consealed knifes and other objects and challenging behaviour. We are first in line to cop the abuse when Company and PTV cut corners. Enough is really ENOUGH!!!