事 action/ incident

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.

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 ★★★★★
用 (utilize) + 事 (action/ incident) = 用事 (errands)

errands, chores, stuff to do. "I'd love to come to see your performance piece, buttttt I've got 用事。”

one's job, one's work. ★★★★★ KUN ON
仕 (work) + 事 (action/ incident) = 仕事 (one's job, one's work. )

have a meal. ★★★★★
食 (eat) + 事 (action/ incident) = 食事 (have a meal.)

accident ★★★★☆
事 (action/ incident) + 故 (breakdown, accident) = 事故 (accident)

accident - not like you spilled your Coke, but like a traffic accident or a dude getting smeared by a meteorite.

incident ★★★☆☆
事 (action/ incident) + 件 (incident) = 事件 (incident)

incident, as in crime or accident. Something you gotta fill out a report if you were a witness.