If I feel like I could possibly get injured doing something, I refrain from doing it.
As a kid I used to stick with certain foods, stay at my home place, and get upset when my parents took me out of the house unless it was to go to certain places I cared about like a certain swimming pool or a couple restaurants I liked.
I am the same way in that you have to keep prodding me to do something new. The reason behind this is that when I get OK with something, I finally obtain the confidence to do whatever it is you want me to do.
I can do some crazy things that most people wouldn't dare doing such as flipping on the ground. Some even tell me to stop because they are worried I will hurt myself. I'm not. Because I have the confidence that I can do it.
Contrary to being in the sack, my dreamworld is not exactly. In fact, I imagine doing adventurous/extreme things. Any other ISFJs think like this?