How many legs?

I had no idea what this was, and after finding out it was venomous I just hope it stays away from me! I am not the first one to be freaked out by this creature, even an entomologist said “..they even freak ME out because they are so fast, can climb walls, and run across ceilings.” I steeled myself to read more about it in Wikipedia, trying not to look at the pictures. It is a Scutigera coleoptrata – or house centipede – and the interesting things are: they administer venom through modified legs, so it is more a sting than a bite; stings are no worse than a bee with its venom causing redness and mild to severe swelling; it only has 4 legs when hatched and gets a new pair at its first moulting then 2 pairs at the next 5 till they end up with 15 pairs of legs and they live anywhere from three to seven years. We should like them because they feed on spiders, bed bugs, termites, cockroaches, silverfish, ants and other household arthropods, but I just don’t think I can.