"Getting" unpaid leave is a misnomer. The employee isn't getting anything and they employer isn't giving anything.
It's a right. It is the right to leave without the risk of the employment agreement being terminated over that specific leave.
The employer ought to be grateful if an employee wants to return after being required elsewhere for personal reasons for 12 weeks.
Is the ring holders poop also invisible?
Obviously it's invisible while inside the person, but what happens if they make a little turd? Does it become visible in mid air or does it work like the clothes?
What if they make a poo poo in the middle of a street while invisible, then walk away to a different town. What happens if the ring is then taken off?