During my hospital's days I finally solved the mistery of the rubber schicken and here are some snapshots to prove it:
Image 1: You can see the rubber schicken hang near my hospital bed
Image 2: You can see the nurse asking me for a sample...
Image 3 ([u:7df2993c01]censored[/u:7df2993c01]) : You can see the nurse helping me with the sample...