Rule of Threes
"The important thing is to abide by the rule of threes. Either you see a woman three times in quick succession and then never again, or you maintain relations over the years but make sure that the rendezvous are at least three weeks apart."
--Tomas, The Unbearable Lightness of Being
Now, everywhere I go or everything I do seems to link with this.
PS: Might just be adopting a Rule of Threes relationship with trainings.