person A: I used the restroom at a nice restaurant and I had toilet paper stuck to my shoe and didn't know it until I left. 
person B: Oh that is the worst feeling! I hate using the restroom in public as is. 
person A: Yeah_comma_ I wish someone told me at least. They all probably just laughed. Haha
person B: Maybe.  For me I just don't want to cause a stranger to be embarassed lol