Kid: certain is spelt sertan
Me: no. It is spelt certain
Me in brain: You're stupid. You're even worse than me, English isn't even my first language.
...
Me: so, after 4, whst is the next squared number?
Kid: um... 6..?
Me: Try again. Think about it. The next number, after 2, which is the square root of 4, is 3. 3 times 3 is 9, so the 3rd square number is 9, make sense? I'm sure you got it!
Me in brain: Why are you SUCH a frigging retard?
...
Kid: so, my friend dared me to ask you out, so-
Me: *sprains his ankle*
Me in brain: *punches his nose in, then knees him in the nuts, then sprains his ankle*