From rowlandwells' description, I'm glad I didn't see it. Personally I do not put much score on a Red Tractor mark: I have picked up a lack of trust in empathy for the mark through various reports and detractors over time. (In other words, the Red Tractor mark does not persuade me to buy the produce compared to non-marked produce.)
Of course, as John says, there are bad apples in any barrel (and under any quality mark), but I do believe that any registration organisation offering a supposed guarantee of quality/behaviour from their members needs to be very very active on the ground with frequent random visits without notice. If that means higher costs for membership so be it; plus consumers will be ever more confident and will likely be prepared to pay a few extra pennies per lb (just under half a kilo for younger forum members) for their produce me thinks !
Also as John has remarked, I know full well that the vast majority of live-stock farmers care for the well-being of their animals despite the fact that they will, one day, decide to send them off for slaughter. Keeping livestock healthy and contented is not only about achieving maximum price for their meat !
[And, yes, I eat meat - and absolutely loads of veg' also - with no intention of going veggie or vegan.]