It's a fix!!!
I'm a sad man but I figured out that you'll get it wrong every single time on the first go.
Based on 20 attempts of guessing the left bucket and it being on the right bucket
and 20 attempts of guessing the right bucket and it being in the left bucket.
Try it yourself, you can't choose correctly the first time.
As the first time it's fixed so you can't win, It looks like Ironside was tellling porky pies...
i got it wrong for the first time on go 11
Thereafter the ball alternates between the left and right buckets without fail. It is never in the mddle bucket. So you can impress the missus by showing her your lack of interest in other people's bouncing boobies and your astute powers of concentration whilst secretely just enjoying the norkage!
left yay right yay left yay right yay left yay.....repeat till she gives you some to shut you up.