Diddlydo - "Only you mentioned "thats" and "that's", not I."
Sigh.
At 4.21pm yesterday Gulliver used "thats" when he should have used "that's".
Therefore, I drew the entirely reasonable comparison between you thinking getting "its" and "it's" wrong as an indicator of a lack of "Brainpower" must be the same as getting "thats" and "that's" wrong.
Anyway, this has run its course for me - I will retire with the comfort that Gulliver, by your own definition, lacks "Brainpower", and that Gulliver has been well and truly made to look a fool by NJ.