The established method is to unroll enough to almost reach the overhead, then throw the remainder of the roll over the span wire.
Or so a friend told me.

Sent from Samsmug tramblet

-------- Original message --------
From: "Mal Rowemal.rowe@... [TramsDownUnder]" TramsDownUnder@...>
Date: 9/12/2017 17:19 (GMT+09:30)
To:TramsDownUnder@...
Subject: [TramsDownUnder] Yarra Trams deals with the great toilet tissue crisis of 2017