Bubblegirl's post reminded me of something I used to do when asked why I was sick.
I have a few medical conditions that require me to take time off and I got sick of explaining to every new manager who comes along many, many years ago what my problems were.
So I remembered something I saw from a stand up comic one time. When asked to go into detail about why I'm sick I simply reply, "Severe friction burns to the genitals." Shuts them right up 100% of the time and can guarantee no more questioning.
Did have one manager try to fire me recently after a four day stay in hospital due to my heart doing backflips, but the owner of the business didn't seem to like the idea of the unfair dismissal lawsuit and overrode that decision.
Now however I have been off work for six months thanks to a spinal injury sustained at work and go in for some major surgery in only seven days. After this I may never work again at the grand old age of 30. If I can work again though, I am pleased to say it has been decreed I can never work in retail or hospitality again.