I can take time off work as I have 4 weeks vacation a year. If I choose to take anything above and beyond those 4 weeks, I don't get paid.
Because I am willfully not working, a court would determine that I could've been working and thus impute my income to an amount equal to what I should have earned.
Yeah, this guy can take a vacation all he wants. But he doesn't get to unilaterally reduce his c/s because he chooses not to be employed for 3 weeks.
Also, look at how bad this appears anyway. This guy is trying to reduce c/s just so that he can go on a vacation (likely a trip). So he spends probably $1-2k out of his pocket, then tries to claw some of it back from c/s because he chooses not to earn an income?
This is a LOA, not unemployment and it is a short duration. He would be entitled to a reduction had he really been unemployed, and receiving EI or something. But he isn't unemployed, he still has a job. What he is trying to do is really distasteful.