Discos: When I was young, some 20-25 years ago, at the entrance to the discos and clubs, they always used to stamp your hand with a stamp quite difficult to take out, which was useful as ticket to re-enter after some minutes of fresh air outside.
IKEA: Yesterday, during the procedures to leave 1 and half hour our elder daughter in the “children paradise”, the playground of IKEA, they stamped our hands with the same almost impossible to delete ink they were using in the discos in the 80’s and 90’s.
Switzerland on 29th December 2014: the “busiest” day of the year in the Confederation!
All the people were visiting IKEA in Spreitenbach (by the way the oldest IKEA in Switzerland), a small town in Argovia at the border with Zurich canton, probably only famous for IKEA and some other “equally full of people” shopping malls!
Conclusion: when it becomes busy and crowdy…somehow your hands will be definitely stamped!