Imagine being the unlucky idiot that draws the seat next to Hankins at Thanksgiving Dinner? The smell alone, not to mention the bragging lies and angry attention seeking. Then you'd have the table manners, chewing with mouth full and open, horrible lips smacking, teeth grinding noises, etc. He's like a shaved down Yosemite Sam.
They probably have him squeezed between Em and his mom so he doesn't make any more enemies.