Back in 1968, when I was a fresh-faced student, the UK introduced a new driving test for driving large trucks. Being a penniless student driving a truck seemed a good way to earn some money during the long summer recess. So, bankrolled by the Bank of Dad, I took some lessons and much to my surprise, and probably everyone else's, I passed. That licence was a good investment, I was able to earn enough to supplement my student grant, I even earned enough to repay Bank of Dad.
Whilst I was driving at one of the companies that the staff agency had sent me to, I got talking to the general manager. He was very interested in the Business Studies course at University. Following graduation I went to work at that company as a junior manager. Slowly I climbed the greasy ladder of promotion.
Fast forward fifty years and I still hold a current licence to drive what we Brits describe as a Heavy Goods Vehicle. Now in retirement, and not having driven HGV's since my student days, a local company that I have done much work for, got in touch and their manager said, with some surprise: "Is that right? You have a licence to drive HGV's?" "It certainly is," I replied.
We had a long chat, they have a fleet of goods vehicles that need inspecting, servicing and repairing. Their servicing company is twelve miles away, whenever they needed a vehicle to go into the repair centre it meant an expensive cost of a driver from the staff agency. Now I do it, and I love it, playing at truck drivers that is. Mind you, I must admit, to you not to that manager, my first run to the repair centre had my buttocks gripping the driver's seat like glue, I was sh*tt*ng myself. Let me show you the size of the vehicle and you will understand my consternation.

Nowadays I have become used to the size, that's why it's fun, and the amount of money that they pay makes for a very comfortable life, thank you very much.