“Our staff were subjected to a week-long campaign of harassment by an individual.
Really? and which individual was this exactly, was it the 65 year old pensioner, was this the individual? Also, what was the specific harassment perpetrated by this 'saga lout?' Deterring motorists from parking illegally, the job that NSL should be doing.? What a heinous crime, call the police immediately.
I have encountered people like Tim-not-even-nice-but-very-dim before at large companies. Typically, they have no actual skills or use but they haven't done anything stupid enough to justify dismissal.The usual course is to promote them to middle management because they're not the type of people you want doing actual work. It's not an ideal practice but it does stop morons from disrupting production.