The return of tie of the day

In honour of the Research and Development party this evening, I put on a bow-tie.
I excluded bows from this summer's #tieoftheday project, but I have several, including some that were my father's and I am tempted to wear them, and, naturally, record the results.
Not everyone can carry them off. My father certainly could, and bow-ties are in any case often affected by doctors, fir infection control reasons. I think, at 55, I probably have sufficient gravitas to get away with one.

Biljan MM, Hart CA, Sunderland D, Manasse PR, Kingsland CR.
Multicentre randomised double bind crossover trial on contamination of conventional ties and
bow ties in routine obstetric and gynaecological practice.
BMJ. 1993 Dec 18-25;307(6919):1582-4.