Indispensable co-worker

Co-worker wasn't at work again today. That makes 2 days in a week. I was given a replacement to operate the machine I work on and found the day most pleasant. I now realise just how difficult co-worker really is. He pushes and pushes all day to produce the most product possible in the allotted time and it wasn't till I had the chance to operate with someone different that I realised the same amount of production can be achieved without all the "hurried" stress that co-worker exhibits.

An old bloke who has worked at the factory for 32 years asked me "what's he (co-worker) like to work with?" I replied that he pushes too hard and drives the large forklift like a madman, swinging heavy packs of product around with sometimes dubious results. The old bloke said simply "That's how accidents happen and people get killed..."

I hope co-worker's away again tomorrow, however, I doubt he could stand that cause I think he thinks he's indispensable. I have learned working there that no-one is...