If your date argues, then maybe refuse to share the taxi altogether. (us.singlesover70.com)
We do not advise sharing a taxi with your date, but if there is no choice, you can insist that the taxi drops you off last, so as to keep your home address private. (us.singlesover70.com)
I distinctly remember it, because I was actually sharing a taxi at the time with two super famous people: Yuji Horii - san of Dragon Quest fame and Takafumi Horie, otherwise known as Horiemon. (segabits.com)