Old people and health scams!

When Zhang Fan saw this, he didn't touch it. Instead, he told Old Yu, "Sir, try to use some strength and see if you can retract it back inside of you." Old Yu did his best to use some strength upon hearing this. Zhang Fan could see the muscles around his anus contracting visibly. The portion of the rectum which dangled outside slowly retracted itself back into his body. Old Yu's wife covered her mouth when she witnessed such a strange sight. She wanted to laugh, but also felt that it would be inappropriate to do so. Still, the scene she just saw really made her want to laugh!

"Sir, it went back in. Since you've taken your pants off already, allow me to give you an examination," Zhang Fan said as he stepped forward. He was going to give Old Yu a digital rectal exam.