In complete agreement here. I work with children full-time, and even though I love them to pieces, they definitely drain me. A lot of people assume that teaching children with special needs is equivalent to babysitting, and that kind of attitude really irks me. Kids that are in special education have complex needs, and sometimes, they're more challenging than children who are typically developing, and since they're required to learn, the six hours I spend with them are anything but babysitting. They need to acquire certain skills, and it's my job to make sure that they do so, and let me tell you, at the end of the day I'm ready to crash. Same can be said when working with anyone who is terminally/seriously ill. It's draining, because you're putting your heart into your job, be it volunteering, or paid, and I'd imagine one is as exhausted from this type of work as someone who works in construction, or other job that is physically demanding. Catherine may not be doing something outside of her home on daily basis, but what she does while on the phone, listening to someone who is in pain is extremely valuable and admirable. Of course many people will never understand this, and will just keep saying over and over that the woman is a waste or space/money/time/etc.