Hi Lisa. I tried to send a comment to your last reply but it was from my Blackberry and contained a couple of typos/errors. I’m resending my Comment as an Answer:
Hi Lisa. You’re absolutely right that nothing is 100 percent. Even same-sex training in the home can be a challenge! The bottom-line is that it all comes down to the people involved ( the client and trainer) moreso than it does what sex they are. If you establish a professional relationship, maintain boundaries that you both are comfortable with, and immediately address any issues that may arise, things should go smoothly.