I... I... I'm getting ahead of myself.
5 seconds sound clip from the The Great Mouse Detective movie soundboard.
You can hear this line at 00:03:28 in the Blu-ray version of the movie.
Quote context
[...]
- Daddy, where are you? Daddy, where are you?
- I... I... I'm getting ahead of myself.
- My name is Dr. David Q. Dawson, most recently of the queen's 66th Regiment.
- I had just arrived in London after lengthy service in Afghanistan...
- Little did I know that my life was about to change forever.
[...]