On that basis any one that aint street wise enough to get themselves out of it is fair game , plenty of people find themselves caught up in situations through no fault of there own that they would normally steer well clear of , these are the people the police should be looking after not shoving them over .It is a thankless task but they choose it , trained for it & get paid for it .Of all the coppers out there that day doing a difficult job under difficult conditions how many lost the plot ..? not many , that's the difference between a well trained, well disciplined cop & one not up t