My God...I have two bumps on me Ive just realized too .....I know dam well they are handy ,but they are not for for all types two touch if I recall correctly ..:(
I have seen photos....she was blonde and had three perfectly formed boobs...it's strangers as they diddn't look out of place... Its not as uncommon as you'd think....here have been females born with eighteen going down their bodies in two lines ...when nature messes up ,it creates all sorts of deformities in every living growing thing...Plus there is not one single living growing thing that has not suffered any changes in their structures as they evolve...most so they can servive and improve and we don't get to see that many of natures cock ups ....Maybe that's also why humans in power lie about the the terrible things they have brought about and done or had a ha d in doing....
Helps real typists stay on the correct letters without looking.
Old cell phones with actual keypads and some remotes have a bump on the number five again so you know where you are on the keys without looking.
An old phone of mine somehow got a friend of my son's Mother on speed dial #5. She said we called her all the time. No telling how many minutes we burned not knowing it. She said was always worried we were might be "saying or doing anything she would really not want to hear." Anyway I got that fixed right after she told me.
Element 99 