I don't know, why but having kept fish for about 13 years and having had more than one tanks for almost the whole time and now running about 18, only two of the things on your very amusing list applied:
the mouthful of fish water you have just ingested from the siphon doesn't phase you in the slightest.
your hands are in the fish tank more than the kitchen sink.
But, I still have 6 tanks in the bedroom and one in the bathroom
And I do prepare food packets for my brother to feed when I have to be away. But I never expect more than that. Here are two you might want to add to your list
You have more fish meds on the shelf than bottles in your medicine cabinet.
The second most important use for ammonia in your house is cleaning.