Heh, the average person doesn't consider segmented flatworms to be worthy of keeping. Unless you're writing a research paper on them or something. You're special my friend. 
Definately a good conversation starter though:
"Dude, you gotta come over and check out my new tapeworm sometime!"
"Sure thing, just let m.. wait, what?"
How long is it btw? And looks like you have some Planaria in there with it? Wonder if you cut it in half if you end up with 2 like other kinds of worms.. You could have a colony going in no time.
Then go for size and have a Monster tapeworm tank set up. Those things can get over 30 feet... 

Definately a good conversation starter though:
"Dude, you gotta come over and check out my new tapeworm sometime!"
"Sure thing, just let m.. wait, what?"

How long is it btw? And looks like you have some Planaria in there with it? Wonder if you cut it in half if you end up with 2 like other kinds of worms.. You could have a colony going in no time.

