How is it not dangerous? Driving a tanker filled with hundreds of thousands of gallons of highly flammable liquid, which only needs a spark to set it off is dangerous in my books. Especially when your using a COMBUSTION engine to do so...
And your comment, "Just for driving a lorry" sounds so shady....It's like me saying, because you sit on your ar$e all day in an office you think your worth 35k? Of course I don't know what career you are in, so I have made an assumption. Could you drive a lorry around for 8 hours a day? Think not...