Interesting because my understanding (through medical advice) was you weren't supposed to retract it until it happened naturally (through fiddling and what not) and it should pretty much clean itself, otherwise you can actually do damage. And if it doesn't thats often when intervention is needed ie. circ. So I'm unsure (like inertia) if any blame should be placed.
thats what i have researched to. We will be leaving ds to retract naturally! I have read sometimes it doesnt retract fully untill sexually active.

Its a tough descion with so many different studies and opinions, I think you have to either make a choice or leave to the owner of the penis to make the choice, But definitely tough!