To illustrate the danger of systematic skip concealing a pattern, suppose we were to sample a planned neighbourhood where each street has ten houses on each block.

This book illustrates the dangers of history written by someone with no interest in the past.

He then intends to change into a fish costume to illustrate the dangers of overfishing.

The fates of some of his closest colleagues would illustrate the dangers of his profession.

That a modern home secretary should seek such powers illustrates the danger to which a collapse of media self-restraint might lead.