I was so introverted , I walked home with my head down making sure not to step on a crack , Because you know what they say , " Step on a crack and you 'll break your mother 's back " . I could not take any chances so I never stepped on a crack . And then , everything had to equal my favorite numbers . 3 , 7 , 10 and 13 .

Possible answers:
(I). I count the amount of cracks there are.
(II). I count as i walk too ..
(III). I walk and skip the whole way home ..
(IV). None of the above choices ..
Q: What may happen during my walk home ?
(IV).