Mostly depends on the quality of the wiping material. If it's cottony-soft, (ie, what I buy at home!) I wad -- it's the most expedient. If it looks or feels like sandpaper (what most commercial establishments and my cheaper friends seem to have) I fold, to prevent over crinolated surfaces that just add to the agony.
- Pie
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per·son \ˈpər-sən\ (noun) - an ephemeral collection of small, irrational decisions
The fun thing about evolution (and science in general) is that it happens whether you believe in it or not.
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