Offensive body odor.
Depending on what part stinks, you may be able to cover it up. With feet, you could offer a quick "foot cooling treatment" in which you apply a base oil with peppermint and spearmint essential oils (learned this from Mimi) blended in it, then start the massage. If it's everywhere, you may have to just come out and start telling him/her to shower beforehand. I've only had one client like this, and luckily they only came in once. The only other problem I've had were feet, and I have a nice lotion to mask that.Maybe press the issue of having a nice exfoliating body scrub, in which you have one bucket of warm water, a lufa, some body wash that somewhat invigorates the skin, and give them a quick (really quick, try to BS it into a spa treatment) wash? Then go over them with a warm towel, and begin the massage? Let them "try it for free" the first time, and maybe charge them for it if they enjoy it?