first its 3 then you realize its gotta be 3 times 3 times in a row so you pull 3 times again and then again which gives us a total of 9 pulls but then you pull 3 times more to be sure and you realize you pulled it 4 times now 4x3 and even numbers are not good so you gotta pull it 3 times again which gives us 5 times total 5x3  x200b  you can walk away from the door now but couple feet later you realize you gotta pull it again just to be sure so no one would break into your house kill your family and steal your shit  x200b  eh life is beautiful