cleaning the carburetor

When he removed the carburetor form the engine, he was got "hi" from the bad stinking smell of rotten gasoline. 

The carburetor was full of sludge and rotten fuel and smells very bad. I asked him if he is OK and he said that he is starting to like the foul smell??? 

He also said that he likes the smell of the parts cleaner??? I think he is half-hi from the smell...