PU wearing sunglasses?

[LMan]

Im sure a silly question...but is there a 'protocol' on the PU wearing sunglasses? Presciption or not amke a difference? I know its common on BUs but I dont recall specificially seeing a PU wear them.

Reason I ask is, I wear tinted and clear presciption lenses (yea, I know, no 'big time' for me ) and thought about it for very sunny days, but dont want to violate any unwritten rules.....

TIA!