“Are you trying to pull the same trick on me again? Fool me once, shame on you. Fool me twice, shame on me. " “I really want to trust you again, but it’s hard after you lied to me. Fool me once, shame on you, fool me twice, shame on me. " “You’re asking me to loan you money again? Fool me once, shame on you. . . "
For example, say, “You should think before getting back together with the boyfriend who dumped you. Fool me once, shame on you, you know. "
You might hear it like this: “Ever since my daughter swapped the sugar with the salt, I check before I put it into my coffee. Fool me once, shame on you…”
“He that deceives me once, it’s his fault; but if twice, it’s my fault. "
“There’s an old saying in Tennessee—I know it’s in Texas, probably in Tennessee—that says, fool me once, shame on — shame on you. Fool me — you can’t get fooled again. ”[4] X Research source
