Wanna 3 Sum?

Yes I know.
Don't even get me started on the grammatical incorrectness of that question.
"Wanna 3 sum?"
Erm.... 1 + 2 = 3
There's a 3 sum.
6 / 2 = 3
There's another 3 sum.
I saw "Wanna 3 sum?" printed on the back of a very nice gentleman's t-shirt today.
My first instinct was to wallop him over the head with my baguette. 
But I was hungry.
My second instinct was to replace the number "3" with the word "dim"... now that's more like it.
"Wanna dim sum?"
A-yes please!
Tasty, finger-licking nibbles all spread out in front of you to munch on. Yum yum dim sum.
Awkwardness, accidental bumping, profuse sweating and the occasional "Oops, didn't mean to put that there!" 
Still wanna 3 sum darlin'?
You wouldn't get clashing rears at a Chinese Buffet... usually.
Now, what's for tea?