Related to Can you fold a tallis on Shabbos?
Folding one’s tallis after Shabbos is a seguloh for Sholom Bayis (unfolding a dish towel and helping one’s wife after Shabbos is a bigger seguloh according to Rabbi Zev Greenglas of Montreal, alav hashalom).
If I find my neighbour’s tallis in Shul unfolded (say on Sunday afternoon or later in the week) is there anything wrong in my folding it for him?
Am I interfering with his Sholom Bayis
Would his wife be pleased if she knew that his tallis which she may have bought for him had been folded (even by someone else)?