How common is it to mistype yourself because of the hidden agenda function? It seems that traits related to the hidden agenda are often recognised as a skill or something, and so people tend to put it as their leading function and emphasise aspects of it when describing themselves. I got bitten by this myself thinking I was Ti leading, when it now fits a whole lot better as HA. But I also noticed a common topic around here is ESTp versus ENTj. If HA does screw up one's selfimage wouldn't ENTj be far more likely then?