A redditor wrote in r/IAmA
On “IamA Nobel Laureate, Dr. Paul Greengard, Director of The Fisher Center for Alzheimer's Research. AMA!”
Out of curiosity: did you rent or buy your tux for the Nobel ceremony?
u/DrGreengard replied
The Nobel Foundation requires that one wear tails. Tuxedos are not acceptable. I rented my tails!