I live in Cameroon (home of the mango worm). I was recently away for a few weeks and come home to notice a worm squirming around in the bottom of the toilet. I was gone for three weeks, so I assumed that it wasn't from me but possibly something that back up through the septic system. Is that possible, or do you think it could have been from me though previously undetected and perhaps grew larger over the weeks?
The other possibility is that my housekeeper used this toilet while I was gone. I would have to assume they even if she didn't use it, she flushed it when cleaning and that again, it's probably not from me.