I am a nightmare to manage

[citygent]

People with the misfortune to manage me have always had an absolute nightmare to deal with. I'm generally unreliable, go off at tangents, get bored easily and can cause no end of disruption. What's typically stopped me from being fired is that occasionally I do something pretty amazing. Like turn up to work on time as some point during the year.

I like to consider that being archtypically 'talented', according to the text books.