The confrontation in question involved some police officers confiscating the goods and tools of trade of a number of vendors, leaving these people suddenly bereft of an income.

Though it is small, the pen has changed the history, improved the trade of countries, recorded events, carried news, and done far more work for human beings than all other tools.

But the tools of his trade were too crude: Electrodes inserted into the brain would stimulate too many cells in their vicinity.