Nothing worth noting. You know what they say: it is the scaracity of an item that determines the worth of the item; in this case, instances where my ISFj father has overreacted under-pressure are far too numerous to even recall one.

They seem to get most nervous when you're attempting to be more efficient, though do so using functions such as Ne, which in turn make them nervous and unsure about the result.

Edit- Most particularly when you attempt to revamp how THEY do things. Fits of rage, for male ISFjs at least, are all too common in such situations. It comes off rather infantile. :/