Forensic approach. Kudos Hutsori.
Its been educational to read and to some extent (not in full) I do some evidence removals myself but even so it bellied up not so long ago. I admit I don't change bed covers between sessions (only if some blood). Well girl arrives and we start humping on the bed. Then she screams in pain. Then I found the previous girls ear nob inside the bed covers (the opening was the wrong way so in some mysterious ways must have fallen inside. Because I swiped and searched for hairs / items in bed between the two sessions. I had to invent some excuse as usual because the girl was sure I did other girls before she. I refused and blamed housekeeping staff (one of them must have lost it). I just stood by my explanation so long and hard so at the end we could go on banging. If she believed it or not. My bet would be "not", hehe.
Learning process: wrap bed covers inside out to see if something falls out.