a woman gags herself hiding it under a mask. she cuffs her hands together in front traversing a Mall. buying a few 'things' before she leaves the mall trying to reach into her purse the key to her cuffs. losing them she tries to find them she happens upon a friendly face (M or F) who helps her unlock the cuffs before admitting they enjoyed this kind of game as well.
Tape gagged would be best. i thought but it is the authors choice.
PM if you are interested.