Whilst having great sympathy for the general sentiments in the previous threads, there is a possible dimension that at least should be recognised.
The FTL rules for commerical pilots require all flying except for private flying in small aircraft to be reported to the operator and put on your FTL record. In some cases a pilot's roster uses up all of the permissible duty hours or is operated on a special scheme that prohibits additional non-private flying.
What would happen if your flying outside your employment prevented you from flying for your employer?