2023 Holiday party and Secret Santa madness

In December 2023, we went for our second annual 4th floor Holiday lunch with the labs of our friends and neighbours Alex Radzisheuskaya, Gideon Coster, Jörg Mansfeld, and Max Douglas. As in the previous year, we had a fantastic meal, and some excellent Secret Santa presents were exchanged. As a consequence, Rob's milk bottles will henceforth be protected from the mysterious 4th floor milk poacher... Or will they?