How about "leech" instead of "thief"? That's a little more pejorative than I would like, but less so than "thief". We all take more than we give (leech) from t

How about "leech" instead of "thief"? That's a little more pejorative than I would like, but less so than "thief". We all take more than we give (leech) from time to time. Often we do this with the expectation that we will pay it back - or pay it forward. For examples, consider children, or someone receiving welfare, or someone who buys a cup of coffee in a busy cafe and then takes up a table for three hours. This is a spectrum, too: if your community thinks that you have crossed some line, you will be regarded as a thief. I like the anonymous payback idea: it could be as simple as a paypal link on the author's web site. If that became widespread, it would be interesting to study the data.