A lot of dommes put on chastity items on their subs and the chastity play is for the session only. Some fraction might also send 1 in 50 subs home in chastity knowing that he will be returning to get freed at some point or get out in some way or at some point.

Which of you, if any, have done the chastity thing in which
1) you sent the sub home in chastity
and
2) he was not expecting that or it was a form of punishment, challenge or coercion, if any?

Or, if you are a sub, which of you have experience this form of bdsm?