I always felt Nan is full time on MDMA.
(the full time grin in inappropriate settings as an example)
I figure in SF it’s probably available in vending machines.
The term Rictus is Latin for "open mouth" and depicts a fixed grin or grimace. Sardonicus is Latin for sardonic and was used by Homer to describe a bitter or scornful laughter. Together, the phrase depicts an early symptom of tetanus whereby the sufferer's face is locked in a painful and often sinister smile.
Read more at Suite101: What is Rictus Sardonicus?: Early Symptoms of Tetanus in Popular Culture http://www.suite101.com/content/what-is-rictus-sardonicus-a217878#ixzz1FZfHJjrk
No, the permagrin is because she's had 47 face lifts. If she has one more she'll have a permanent beard......