in the last few years i have been working at MAN have seen quite a few mistakes shall we say...... a JMC 757 on top of a tug near stand 8 i think it was,and a loading belt that took a large slice out the back off an BA ATP....i heard that the aircraft was a total loss. it does'nt help when the workforce is using equipment that in some cases is 20-30 yrs old!!!