One I found particularly amusing/confusing was an old reg of mine who advertised CIM but only allowed OW. I questioned her about it one day and she said CIM was fine but only in the condom as she didn't like the taste
On that occasion I elected for her to finish me off with an oily hand job and ended up spunking over her quilt, pillow a bit landed on the floor and some in her open sock draw! I'd failed to mention I'd been saving it up all week