Sometimes you can start a war accidentally hitting the wrong emoji response.
I have long nails so sometime when I mean the caring emoji, I might accidentally hit the laughing one, then not be fast enough to correct it before they notice.
or you try to be funny and you think the other person realizes it and then they block you - and you can't even apologize - hell I would even grovel - I hurt the feelings of somebody that I would never intentionally hurt.