never
once
twice
thrice
four times
five and a half times
six times
seven times
somewhere between 8 and 7,362 times
just about every time i wash my hair
n^2*c (where c = 3x10^8 m/s and n = 1, 2, 3, 4 ...)
every time i meet someone new and cute who really SHOULD be my dual ...