https://www.youtube.com/watch? v=pLe6SrgY67w m/f feet Jeanette Biederman
https://www.youtube.com/watch? v=pLe6SrgY67w m/f feet Jeanette Biederman
She says that the procedure was torture, that the hall had a very dirty floor and she couldn't enter the bed with dirty feet, so they had to clean them. The interviewer uses an interesting word "gekrault" at the beginning, when he asks her why her feet were cleaned, which sometimes means massaged but it also implies tickling in a way. In the end she repeats that it really was torture for her.
There is another video from a german moderator, where she walked over glass and afterwards had her feet cleaned, and she was very ticklish. I have to look it up. Maybe someone knows what I'm talking about. And this woman was also tickled on her feet in an episode of the German "Let's Dance".