the funniest "line" I've heard in a while

The funniest "line" I've heard in a while...

I'm in the office, and this "salesperson" comes to the door selling those hand-held fans you can get at Six Flags. I tell him to back off [nicely] and he gives me his number.

Tall young boy with the faux brown eyes who smells like baby formula and outdoors: "So, can I get your number?"
Me: "No, thanks. I have another half."
Tall young boy with the faux brown eyes who smells like baby formula and outdoors [laughingly]: "Oh! Well, when 'other half' leaves, I can be your whole."

Me [thinking]: You must not be very bright, huh?

Hilarious!!