Sometimes things just click and a con becomes an event that one will always remember. I suppose it could happen for other reasons, but the ones I recall most fondly involve shenanigans with fellow fen. Typically, those deeds are spontaneous and creative, never to be repeated (it just wouldn’t be the same). Humans are definitely herd animals, and there is nothing quite like being in a joyful crowd where everything seems to fall into place, almost without effort. The positive glow that one can acquire from these moments of high energy and glee simply do not happen often enough.