Yep. Seven years ago, that old vet slapped me on the back and said to my father, Congratulations. It's a boy.
11 seconds sound clip from the Mister Ed - Season 1, Ep. 4 - Kiddy park TV Series.
You can hear this line at 00:02:03 in the DVD version of the movie.
Quote context
[...]
- You heard Mr. Addison. This trip is for men only.
- What do I look like? A girl?
- You're leaving me alone on my birthday?
- Seven years old, huh? Hmm. You know, you don't look more than... 5 and a half.
- Look, Ed, we'll discuss it later.
[...]