Playing a homebrew campaign and I wound up being escorted through the secret thieves' guild tunnels under the city.
When we entered, the leader attempted to blank my memory. I succeeded the save to avoid having my memory wiped. DM had me roll deception to pretend I had been wiped; I failed. So the leader tried again. Same results.
Then the leader tried to knock me out but I succeeded the save to maintain my consciousness. She tried to knock me out several times with me saving each time. I eventually just said "Please stop punching me! I promise I won't tell anyone!" Critically succeeded that roll (homebrew) and got an apology from the thieves' guild leader and was escorted through the tunnels unharrassed.