Isn't that the nature of conversation? To drift gently from one topic to another, particularly if the topics have a common factor?
You haven't fully grokked "drift" until you've experienced BrokenKid's "stack-based" conversational style. It follows a pattern, thus:
Kid:
"I was at school today, and my friend Kara..." <push>
"...who is in my geometry class..." <push>
"...and she hates my geometry teacher..." <push>
"...who is always talking about her chihuahua..." <push>
"...why do people even like dogs like that? They're like rats..." <push>
"...but my friend Ann has a rat, and a lizard..." <push>
"...I want a lizard, but dad won't let me have one..." <push>
"...So when I buy a house I'm going to have a lizard and a snake and a guinea pig..." <push>
"...A friend of mine says that people in South America eat their ears."
[implicitly and silently, the stack is popped 8 times]
"...She said that [something or other]."
Me: "Who said that?"
Kid:
"
Kara said that."
The thread drift that happens here is
nothing. At least most of the posts here are, in and of themselves, on a single topic.
Oh, and, yes, that was an accurate description of BrokenKid's matter of speech. Note the careful use of completely ambiguous pronouns, such as the "she" in a soliloquy that includes 4 potential "she"s.
-BP