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There are other tricks that can be employed to lower resistance. It can, fo=
r
example, be =B3disrupted=B2 by the unexpected. In an experiment a few years ago=
,
students posing as beggars found that they received small change 44% of the
time that they asked directly for it without specifying a sum. If they aske=
d
for a precise sum that was a single coin (25 cents), they got it 64% of the
time. But if they asked for an apparently arbitrary number (37 cents) they
got it 75% of the time. The more precise and unusual the request, the less
people were able to resist it.

<http://economist.com/science/displaystory.cfm?story_id=3D1109515>

Best,

Ziya