Humourous story (for me). For most of my life I was a human stick. 6'4" 165lbs. Got teased a fair bit for being skinny. But I also grew up working on farms.
At the end of every year in college we were required to unbunk any beds in the dorms. A bodybuilder's roommate had already left for the summer so he asked me to help him unbunk his bed. They were pretty heavy and awkward and for whatever reason he couldn't get a proper hold to lift his end, so being annoyed I put the whole thing on my shoulders and did it by myself while he watched confused.
I was definitely not stronger, but a life spent doing actual physical work had unsurprisingly better prepared me to do actual physical work.
That being said I am now a dough boy who could stand to get back to doing manual labor.