[clarkm]

I thought the light was tied to the meter in order to prevent stuff like that?

[Hominem]

They don't have to turn the meter on, especially after their shift when they are driving back to the lot.

One more thing, if you pick up a yellow cab, or a "car service", when they are off the clock, you don't have to tip.

[juliangregorian]

Technically, you don't have to tip ever. It's just a dick move not to.