I don't tend to have this problem. My mother is an ISTJ, and I tend not to pick up on any snide undertones (if there ever were any). I tend to take people at face value, which I suppose they'd either find disconcerting. Either that or they're probably secretly laughing at me: either way I'm not affected as I have my own values and standards and I don't try to measure up to theirs.
If they were to ask me if I'd ever blanked out whilst teaching (I lecture computing), I'd just laugh and say yeah all the time!
If an ISTJ wants to really try to get at me they'd have to actually lose their temper and start shouting. If this happens I will bite back. The normal outcome is that my mother ends up in tears and then I have to apologise lol.