Dan Ariely includes some examples in "Predictably Irrational" and "The Upside of Irrationality" http://danariely.com/the-books/ as does Duncan Watts in "Everything is Obvious Once You Know the Answer" http://www.amazon.com/Everything-Obvious-Once-Know-Answer/dp/0385531680

My favorite example is the study of a bunch of day care centers in Israel. The day care providers were upset that parents come late to pick up their kids -- thus extending their day without fair compensation. They implemented a small late fee at some of the day care centers to see if charging the parents for coming late would reduce the lateness rate.

As it turns out, those centers that charged a fee had their late-rate jump up considerably. The parents apparently felt less guilty about showing up late since they were paying the fee. Moreover, when they stopped the fee a few weeks later, the late rate at those centers remained as high, since the social stigma of being one of those late parents wore off.

Note: a better fee structure would have been to increase the charge by the minute -- so rather than a fixed charge for being up to 15 minutes late, and perhaps a larger charge for more than 15 minutes -- they should have experimented with $1 for the first minute, $2 MORE for the second minute ($3 total), $3 MORE for the third ($6 total), etc. This way late fees could be a revenue generating scheme as well as a punitive measure!