Yes you are right itis not Biffas fault CM is in the bin. He either got in himself or someone put him there, However it would be lax if the bin wasn't checked by the employee prior to loading..
I have another question we have learnt that the average weight of Gregg,s waste over the last few months has been 11kg but is that per week, per day, per month and that price is by collection and not weight. I was wondering how many times a week is 11kg picked up because it strikes me as an awfully small amount to collect and if the weight had been misinterpreted once is it possible it had been misinterpreted many times just pondering.
Rated to carry not a biffa bin so similar
https://www.wheeliebins.co.uk/1100-litre-wheelie-bins.html