Do you get bored with the adverts on TV?
It gets quite exciting when there's a new one - is it a car (special effects), perfume (monochrome orgasms), washing powder (improbable story), or another poor soul with inexplicable rust in the W.C. pan?
Why do they advertise something to soften stools at tea-time? And those bloody women with their digestive discomfort - they need a good slap and being told to eat less, and more slowly.
And what do "pre-biotic" and "pro-biotic" mean, anyway?
*rustling of dictionary pages*
"Pre" means before; ignoring the meaning of "pro" as professional or a prostitute, the other meanings are in favour of, acting as a substitute for, forwards, or in front of. Then "biotic" means relating to life or living things, or of biological origin.
So put together, we get pre-biotic = before relating to life. And pro-biotic = acting as a substitute for relating to living things.
Not something I would want to eat.
Especially as pro-biotic is almost certainly the opposite of anti-biotic.