What was your first newbie moment?

I had my old class A in my daughters driveway and needed to turn around before entering a busy hiway. My wife asked if I wanted her to spot for me, but she had recently had knee replacement surgery and it was difficult for her to climb through to do that. "No, I'll be fine"......did a few adjustments back and forth, got nearly straight.....last trip rearwards and CRUNCH. I had a homemade wood box in the hitch receiver and it smashed into the garage door. Took out my roof ladder, some trim on the garage overhang, and $600 worth of new garage door. No damage to my woodbox, I build things heavy duty!

The worst part is my SIL and 4 grandkids saw the whole episode.