Anke's David was visiting us yesterday. The three of us shared thoughts about traveling sales people who want to minimize the length of their tour, relative to the lower bound given on said tour by the well-known subtour elimination LP.
For lunch, we had homemade quiche, because the mensa was closed for carnival.

P.S. For the first time, Frans did not use
this recipe (bam!) for the dough, but instead used the recipe from
Escoffier. What a difference!