I thought this was funny and mostly true. I especially have a hard time explaining to family that social engagements are exhausting for me and I need time to prepare for them (and recover afterwards). They simply wear me out. I sometimes need a nap after. One thing not mentioned here, and (I think) most introverts are the same — I am hyper sensitive to sound and light. I also don't like people standing behind me. So a noisy place with bright lights and people running amok is pretty much a nightmare for me. I do it sometimes because I have to, but find it really annoying when people assume I am being difficult on purpose and I need to just "buck up." Trust me, the energy drain is real and I have felt it my entire life. As I have gotten older I go into protection mode more and more, recently going to great lengths to reduce the stress in my life. So if at a social gathering you see me with my back against the wall by myself, please leave me there for a few minutes and I'll come out and play when the energy in the room feels right to me. Either that, or bring me a strong drink.