I can be the life and soul of the party sometimes, on my own terms, but once that time is over I need to be left alone.
I remember at my Grandaughter's Christening I suddenly needed to be peaceful for a while, but it was raining like hell outside. I found an empty sofa in the hall and lay down with my back to everyone and sent myself 'away' for a while. A few family members arranged their chairs so no-one would just blunder in.
Up came my ex-wife. "Is your father alright?"
"Yes," said my girls. "He just needs a little quiet time."
"Ah yes, I remember."
Quarter of an hour later I was fine again, ready for the cake cutting and more jollity. But if I'd forced myself to go on I'd have been distinctly 'unsociable'.