I'd recommend steering clear of words with too much s-s-sibilance, pal.

5 seconds sound clip from the The Brave Little Toaster to the Rescue movie soundboard.

You can hear this line at 00:05:35.235 in the Blu-ray version of the movie.

Quote context

[...]

- Hey! That is quite enough, Ratso. You are not, as they say, very respectful.

- Little Alberto. Looks like a dog. Sounds like a dog, only he's too small to be a dog.

- You stop that! You... You dirty rat, you!

- That rap's been foister unto us rats for years. Rats are not dirty! Just like snakes are not wet and slimy.

- Right, Murgetroid?

- Absolutely, positively correct, Ratso.

- I'd recommend steering clear of words with too much s-s-sibilance, pal.

- Now look what you've done. You woke Sebastian.

- What's all the ruckus?

- We're sorry to wake you, Sebastian.

- That's OK.

- Uh, thanks, Toaster.

- No problem.

[...]