On my God, that's the worst. Happened in an elevator once and I made this embarrassing shrieking noise. I had never made.that sound before and couldnt replicate it if I tried. But the thought of fat flesh touching my own makes me shudder in disgust.  Years ago I was flying and tucked into my window seat only to have this huge former male plop himself into the seat next to me. He pulled up the armrest and I was pinned to window by his revolting flesh. I was young and dumb and allowed this hideous creature to invade my space.  I wouldn't speak to it but didn't even know I had rights, much less the ability to assert them. This ham planet and its equally fat wife knew they wouldn't fit into seats next to each other, so they booked aisle seats across from each other where they pinned the ones next to them into the windows. Small plane, total of four seats across. There was a young guy stuck next to the wife and I clearly remember the looks of disgust and terror we exchanged. Still pisses me off to this day that I tolerated this.