oh honey, many times. we once bought a "hen" ready to lay, and then a week later he crowed! and then we once had a bantam who we could have bet 1234567 dollars that she was a cockerel. but no, she laid a egg, right there in front of me. and yep! i am still teased. just be glad it isn't 100 roosters ( we bought 100 and we-- I'm sorry, they are going to be eating them)
And what's even worse is that he ate it while I was there