I didn't know it was snack time.
A ridiculous reason to not eat when you're too focused on something else to even think about food
'I didn't know it was snack time' when I was too focused on my phone to even notice the snack
'I didn't know it was snack time' when I was too busy arguing with my friend to eat
'I didn't know it was snack time' when I was too busy playing video games and didn't care about the snack