JESUS was involved in a rather painful incident. Perhaps you've heard about it.
The ten radical goes through the mouth radical, so you could say:
There was an incident where ten mouths got skewered with forks.
this one has a lot of meanings.
Usually it means an action, as in 'You did a good thing there,' or 'You did a bad thing.'
Sometimes, it means person, though： かれ の こと が きらい! ('I can't stand his koto' means 'I can't stand him!')
わたし の こと を おぼえて うれしい!('Thank you for remembering my koto') means 'Thanks for remembering me.')
errands, chores, stuff to do. "I'd love to come to see your performance piece, buttttt I've got 用事。”
accident - not like you spilled your Coke, but like a traffic accident or a dude getting smeared by a meteorite.
incident, as in crime or accident. Something you gotta fill out a report if you were a witness.
Talking is an action you do with your MOUTH,
Writing this book is something I do every damn DAY.