Yes, that was pretty much my argument with T! I feel that admitting uncertainty is an adult thing to do. I used my partner as an example - he never says 'I don't know' because he's afraid to admit to not being an expert on everything - I find that to be very childish!

To be honest I don't think he was expecting me to take such issue with it and is probably already regretting saying it... tough luck T, I'm gonna make you regret saying it some more