Hi all,
Long time reader and lurker, first time poster. I didn't see a introduction forum, so greetings! This thread caught my eye; they have been one of my favorite tools of the trade.
What I like about them, as Miss Lucy said, is the humiliation aspect especially because they can be hidden in plain sight in public. One of my more memorable scenes was when I had the sub I was training insert them as soon as we got out of the shop and into the car. She was made to keep them in while we went to the grocery store for 'food'. It was for about an hour in total.
Also, thanks Lucy! The swimming idea is fantastic!