Uganda, May 14 -- There is growing anti-tax agitation in Uganda, and several African countries. It's therefore the right time to write about toilet paper. Yes, toilet paper.

A few days ago Ugandan traders paused their strike over the Electronic Fiscal Receipting and Invoicing Solution (EFRIS) for smaller businesses. There are reports that they will return to it in two weeks a fury. Yes, EFRIS isn't a tax. It is akin to your church abandoning the basket, and unveiling a Momo Paybill to collect the tithe. The protest against it must therefore be understood as anger against tax. The traders did something quite remarkable in Uganda today. They went to a meeting with President Yoweri Museveni, then walked out on him in protest when they didn'...