Note that this may only be funny to the American posters, as it sort of relies on knowing American folklore, but:

Last night my husband and I had a close friend over for dinner. He isn't into BDSM himself but knows about our relationship. When I brought dinner to the table, my husband said, jokingly, "Now it'd better be good, or I'll have to punish you!" Our friend replied "Go ahead, throw her in the briar patch!"