Buck: Did you brush your teeth?
Miles: Yeah. You can even feel my toothbrush.
Buck: You know, I have a friend who works at the crime lab at the police station. I could give him your toothbrush and he could run a test on it... to see if you actually brushed your teeth... or just ran your toothbrush under the faucet.
[Buck leaves, as Miles gawks]
Maizy: If that's true, we're gonna REALLY have to start brushing our teeth.
  
  
  
  
  
   
  
  
Miles: Yeah. You can even feel my toothbrush.
Buck: You know, I have a friend who works at the crime lab at the police station. I could give him your toothbrush and he could run a test on it... to see if you actually brushed your teeth... or just ran your toothbrush under the faucet.
[Buck leaves, as Miles gawks]
Maizy: If that's true, we're gonna REALLY have to start brushing our teeth.
 Buck : Did you brush your teeth? 
 Miles : Yeah. You can even feel my toothbrush. 
 Buck : You know, I have a friend who works at the crime lab at the police station. I could give him your toothbrush and he could run a test on it... to see if you actually brushed your teeth... or just ran your toothbrush under the faucet. 
 [Buck leaves, as Miles gawks]  
 Maizy : If that's true, we're gonna REALLY have to start brushing our teeth. 
http://www.moviequotedb.com/movies/uncle-buck/quote_24915.html