I met with a fascinating gent a few years ago.  We had a delightful dinner then went up to his room.  After some chit chat, he opened the drawer to the nightstand to show me a collection of things he wanted inserted.  The only two that I remember were the thermometer and a mini blind wand.  He had lots of lube, latex gloves, etc...    
   
 I was horrified!  I had never done anything like that before, still haven't, and felt very unsafe even attempting it.  I have friends who practice extreme kink and BDSM, including a friend who performs surgeries of sorts on her clients.  I found it to be incredibly dangerous to ask someone inexperienced (me!) to do such things to him.  I didn't want to hurt him!  
   
 So we kept it "traditional."  I am flattered that he continues to see me even though I can't/don't/won't fulfill that wish of his!